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Directions:Read the following passage carefully and answer the given question.We are never alone. And by this statement, I do not intend to argue for existence of some supernatural entities. We are never alone because we all share our bodies with trillions of symbiotic microorganisms that perform various physiological functions crucial for our health. In fact, they may be responsible for even more than that. The symbiotic microbiota is an important part of the complex system constituting our consciousness. By consciousness, I mean the type called phenomenal consciousness which stands for the subjective experience of what is it like to be someone.If we look at the contemporary literature on consciousness, we can see that the current trend in philosophy of mind is to focus on the role of the brain. This seems quite reasonable since for so long we thought that it is just the brain that creates our mind. However, new biological discoveries in the last decade suggest that we were wrong and there are also other actors at play with a causal impact on our mental states.We must also reject the already outdated idea that we as biological entities are unitary individuals. What constitutes us as biological organisms is actually not just our body mass in the sense of organs, muscles, bones, etc., but also the microorganisms living in symbiosis with our bodies. However, to prove that two entities living together are a biological individual, one needs to prove that there is a shared functionality. Inferring that two entities are a unique individual from the fact that they share the same physical boundaries is insufficient.The symbiotic bacteria are responsible for various physiological processes in our bodies. Scientists call the biological entity referring to the host and its microbiota holobiont. The holobiont concept of an individual applies to the vast majority of organisms on Earth. The typical example of symbiosis is the digestive process of cow. Cows are not capable of digesting grass themselves; it is the bacteria living in their stomachs doing the job. Furthermore, because of much shorter generation times of bacteria, the symbiotic microbiota can reflect changes in the environment faster and thus provide time for the host genome to evolve. Consequently, this gives the holobiont better chances to adapt to environmental changes and hence survive.A vast majority of the symbiotic bacteria dwells in our gut. Recent research shows how important these microorganisms are for various processes we used to associate only with the central nervous system, namely with the brain. The impact of the gut microbiota on the brain begins as early as during the development of the brain itself. The microbiota is necessary for effective myelination of prefrontal cortex – the part of the brain dealing with emotions. Moreover, the bacteria seem to influence the progress of our motor control. On the other hand, brains of animals raised in sterile environments lack this structural integrity.Microorganisms also influence the amygdala, affecting the stress response. This indicates that the influence of bacteria may spill over into every aspect of what it means to be a conscious, living organism. However, the communication is bidirectional, so our emotional states have at the same time an impact on the microbiome structure.Q.Which of the following sets of words/phrases best serves as keywords to the passage?a)Microorganisms; Symbiosis; Genetic evolution; Emotional statesb)Microbiota; Consciousness; Holobiont; Brain developmentc)Philosophy; Holobiont; Bacteria; Nervous systemd)Consciousness; Brain; Gut microbes; SymbiosisCorrect answer is option 'D'. Can you explain this answer? for CAT 2025 is part of CAT preparation. The Question and answers have been prepared
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the CAT exam syllabus. Information about Directions:Read the following passage carefully and answer the given question.We are never alone. And by this statement, I do not intend to argue for existence of some supernatural entities. We are never alone because we all share our bodies with trillions of symbiotic microorganisms that perform various physiological functions crucial for our health. In fact, they may be responsible for even more than that. The symbiotic microbiota is an important part of the complex system constituting our consciousness. By consciousness, I mean the type called phenomenal consciousness which stands for the subjective experience of what is it like to be someone.If we look at the contemporary literature on consciousness, we can see that the current trend in philosophy of mind is to focus on the role of the brain. This seems quite reasonable since for so long we thought that it is just the brain that creates our mind. However, new biological discoveries in the last decade suggest that we were wrong and there are also other actors at play with a causal impact on our mental states.We must also reject the already outdated idea that we as biological entities are unitary individuals. What constitutes us as biological organisms is actually not just our body mass in the sense of organs, muscles, bones, etc., but also the microorganisms living in symbiosis with our bodies. However, to prove that two entities living together are a biological individual, one needs to prove that there is a shared functionality. Inferring that two entities are a unique individual from the fact that they share the same physical boundaries is insufficient.The symbiotic bacteria are responsible for various physiological processes in our bodies. Scientists call the biological entity referring to the host and its microbiota holobiont. The holobiont concept of an individual applies to the vast majority of organisms on Earth. The typical example of symbiosis is the digestive process of cow. Cows are not capable of digesting grass themselves; it is the bacteria living in their stomachs doing the job. Furthermore, because of much shorter generation times of bacteria, the symbiotic microbiota can reflect changes in the environment faster and thus provide time for the host genome to evolve. Consequently, this gives the holobiont better chances to adapt to environmental changes and hence survive.A vast majority of the symbiotic bacteria dwells in our gut. Recent research shows how important these microorganisms are for various processes we used to associate only with the central nervous system, namely with the brain. The impact of the gut microbiota on the brain begins as early as during the development of the brain itself. The microbiota is necessary for effective myelination of prefrontal cortex – the part of the brain dealing with emotions. Moreover, the bacteria seem to influence the progress of our motor control. On the other hand, brains of animals raised in sterile environments lack this structural integrity.Microorganisms also influence the amygdala, affecting the stress response. This indicates that the influence of bacteria may spill over into every aspect of what it means to be a conscious, living organism. However, the communication is bidirectional, so our emotional states have at the same time an impact on the microbiome structure.Q.Which of the following sets of words/phrases best serves as keywords to the passage?a)Microorganisms; Symbiosis; Genetic evolution; Emotional statesb)Microbiota; Consciousness; Holobiont; Brain developmentc)Philosophy; Holobiont; Bacteria; Nervous systemd)Consciousness; Brain; Gut microbes; SymbiosisCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for CAT 2025 Exam.
Find important definitions, questions, meanings, examples, exercises and tests below for Directions:Read the following passage carefully and answer the given question.We are never alone. And by this statement, I do not intend to argue for existence of some supernatural entities. We are never alone because we all share our bodies with trillions of symbiotic microorganisms that perform various physiological functions crucial for our health. In fact, they may be responsible for even more than that. The symbiotic microbiota is an important part of the complex system constituting our consciousness. By consciousness, I mean the type called phenomenal consciousness which stands for the subjective experience of what is it like to be someone.If we look at the contemporary literature on consciousness, we can see that the current trend in philosophy of mind is to focus on the role of the brain. This seems quite reasonable since for so long we thought that it is just the brain that creates our mind. However, new biological discoveries in the last decade suggest that we were wrong and there are also other actors at play with a causal impact on our mental states.We must also reject the already outdated idea that we as biological entities are unitary individuals. What constitutes us as biological organisms is actually not just our body mass in the sense of organs, muscles, bones, etc., but also the microorganisms living in symbiosis with our bodies. However, to prove that two entities living together are a biological individual, one needs to prove that there is a shared functionality. Inferring that two entities are a unique individual from the fact that they share the same physical boundaries is insufficient.The symbiotic bacteria are responsible for various physiological processes in our bodies. Scientists call the biological entity referring to the host and its microbiota holobiont. The holobiont concept of an individual applies to the vast majority of organisms on Earth. The typical example of symbiosis is the digestive process of cow. Cows are not capable of digesting grass themselves; it is the bacteria living in their stomachs doing the job. Furthermore, because of much shorter generation times of bacteria, the symbiotic microbiota can reflect changes in the environment faster and thus provide time for the host genome to evolve. Consequently, this gives the holobiont better chances to adapt to environmental changes and hence survive.A vast majority of the symbiotic bacteria dwells in our gut. Recent research shows how important these microorganisms are for various processes we used to associate only with the central nervous system, namely with the brain. The impact of the gut microbiota on the brain begins as early as during the development of the brain itself. The microbiota is necessary for effective myelination of prefrontal cortex – the part of the brain dealing with emotions. Moreover, the bacteria seem to influence the progress of our motor control. On the other hand, brains of animals raised in sterile environments lack this structural integrity.Microorganisms also influence the amygdala, affecting the stress response. This indicates that the influence of bacteria may spill over into every aspect of what it means to be a conscious, living organism. However, the communication is bidirectional, so our emotional states have at the same time an impact on the microbiome structure.Q.Which of the following sets of words/phrases best serves as keywords to the passage?a)Microorganisms; Symbiosis; Genetic evolution; Emotional statesb)Microbiota; Consciousness; Holobiont; Brain developmentc)Philosophy; Holobiont; Bacteria; Nervous systemd)Consciousness; Brain; Gut microbes; SymbiosisCorrect answer is option 'D'. Can you explain this answer?.
Solutions for Directions:Read the following passage carefully and answer the given question.We are never alone. And by this statement, I do not intend to argue for existence of some supernatural entities. We are never alone because we all share our bodies with trillions of symbiotic microorganisms that perform various physiological functions crucial for our health. In fact, they may be responsible for even more than that. The symbiotic microbiota is an important part of the complex system constituting our consciousness. By consciousness, I mean the type called phenomenal consciousness which stands for the subjective experience of what is it like to be someone.If we look at the contemporary literature on consciousness, we can see that the current trend in philosophy of mind is to focus on the role of the brain. This seems quite reasonable since for so long we thought that it is just the brain that creates our mind. However, new biological discoveries in the last decade suggest that we were wrong and there are also other actors at play with a causal impact on our mental states.We must also reject the already outdated idea that we as biological entities are unitary individuals. What constitutes us as biological organisms is actually not just our body mass in the sense of organs, muscles, bones, etc., but also the microorganisms living in symbiosis with our bodies. However, to prove that two entities living together are a biological individual, one needs to prove that there is a shared functionality. Inferring that two entities are a unique individual from the fact that they share the same physical boundaries is insufficient.The symbiotic bacteria are responsible for various physiological processes in our bodies. Scientists call the biological entity referring to the host and its microbiota holobiont. The holobiont concept of an individual applies to the vast majority of organisms on Earth. The typical example of symbiosis is the digestive process of cow. Cows are not capable of digesting grass themselves; it is the bacteria living in their stomachs doing the job. Furthermore, because of much shorter generation times of bacteria, the symbiotic microbiota can reflect changes in the environment faster and thus provide time for the host genome to evolve. Consequently, this gives the holobiont better chances to adapt to environmental changes and hence survive.A vast majority of the symbiotic bacteria dwells in our gut. Recent research shows how important these microorganisms are for various processes we used to associate only with the central nervous system, namely with the brain. The impact of the gut microbiota on the brain begins as early as during the development of the brain itself. The microbiota is necessary for effective myelination of prefrontal cortex – the part of the brain dealing with emotions. Moreover, the bacteria seem to influence the progress of our motor control. On the other hand, brains of animals raised in sterile environments lack this structural integrity.Microorganisms also influence the amygdala, affecting the stress response. This indicates that the influence of bacteria may spill over into every aspect of what it means to be a conscious, living organism. However, the communication is bidirectional, so our emotional states have at the same time an impact on the microbiome structure.Q.Which of the following sets of words/phrases best serves as keywords to the passage?a)Microorganisms; Symbiosis; Genetic evolution; Emotional statesb)Microbiota; Consciousness; Holobiont; Brain developmentc)Philosophy; Holobiont; Bacteria; Nervous systemd)Consciousness; Brain; Gut microbes; SymbiosisCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for CAT.
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Here you can find the meaning of Directions:Read the following passage carefully and answer the given question.We are never alone. And by this statement, I do not intend to argue for existence of some supernatural entities. We are never alone because we all share our bodies with trillions of symbiotic microorganisms that perform various physiological functions crucial for our health. In fact, they may be responsible for even more than that. The symbiotic microbiota is an important part of the complex system constituting our consciousness. By consciousness, I mean the type called phenomenal consciousness which stands for the subjective experience of what is it like to be someone.If we look at the contemporary literature on consciousness, we can see that the current trend in philosophy of mind is to focus on the role of the brain. This seems quite reasonable since for so long we thought that it is just the brain that creates our mind. However, new biological discoveries in the last decade suggest that we were wrong and there are also other actors at play with a causal impact on our mental states.We must also reject the already outdated idea that we as biological entities are unitary individuals. What constitutes us as biological organisms is actually not just our body mass in the sense of organs, muscles, bones, etc., but also the microorganisms living in symbiosis with our bodies. However, to prove that two entities living together are a biological individual, one needs to prove that there is a shared functionality. Inferring that two entities are a unique individual from the fact that they share the same physical boundaries is insufficient.The symbiotic bacteria are responsible for various physiological processes in our bodies. Scientists call the biological entity referring to the host and its microbiota holobiont. The holobiont concept of an individual applies to the vast majority of organisms on Earth. The typical example of symbiosis is the digestive process of cow. Cows are not capable of digesting grass themselves; it is the bacteria living in their stomachs doing the job. Furthermore, because of much shorter generation times of bacteria, the symbiotic microbiota can reflect changes in the environment faster and thus provide time for the host genome to evolve. Consequently, this gives the holobiont better chances to adapt to environmental changes and hence survive.A vast majority of the symbiotic bacteria dwells in our gut. Recent research shows how important these microorganisms are for various processes we used to associate only with the central nervous system, namely with the brain. The impact of the gut microbiota on the brain begins as early as during the development of the brain itself. The microbiota is necessary for effective myelination of prefrontal cortex – the part of the brain dealing with emotions. Moreover, the bacteria seem to influence the progress of our motor control. On the other hand, brains of animals raised in sterile environments lack this structural integrity.Microorganisms also influence the amygdala, affecting the stress response. This indicates that the influence of bacteria may spill over into every aspect of what it means to be a conscious, living organism. However, the communication is bidirectional, so our emotional states have at the same time an impact on the microbiome structure.Q.Which of the following sets of words/phrases best serves as keywords to the passage?a)Microorganisms; Symbiosis; Genetic evolution; Emotional statesb)Microbiota; Consciousness; Holobiont; Brain developmentc)Philosophy; Holobiont; Bacteria; Nervous systemd)Consciousness; Brain; Gut microbes; SymbiosisCorrect answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Directions:Read the following passage carefully and answer the given question.We are never alone. And by this statement, I do not intend to argue for existence of some supernatural entities. We are never alone because we all share our bodies with trillions of symbiotic microorganisms that perform various physiological functions crucial for our health. In fact, they may be responsible for even more than that. The symbiotic microbiota is an important part of the complex system constituting our consciousness. By consciousness, I mean the type called phenomenal consciousness which stands for the subjective experience of what is it like to be someone.If we look at the contemporary literature on consciousness, we can see that the current trend in philosophy of mind is to focus on the role of the brain. This seems quite reasonable since for so long we thought that it is just the brain that creates our mind. However, new biological discoveries in the last decade suggest that we were wrong and there are also other actors at play with a causal impact on our mental states.We must also reject the already outdated idea that we as biological entities are unitary individuals. What constitutes us as biological organisms is actually not just our body mass in the sense of organs, muscles, bones, etc., but also the microorganisms living in symbiosis with our bodies. However, to prove that two entities living together are a biological individual, one needs to prove that there is a shared functionality. Inferring that two entities are a unique individual from the fact that they share the same physical boundaries is insufficient.The symbiotic bacteria are responsible for various physiological processes in our bodies. Scientists call the biological entity referring to the host and its microbiota holobiont. The holobiont concept of an individual applies to the vast majority of organisms on Earth. The typical example of symbiosis is the digestive process of cow. Cows are not capable of digesting grass themselves; it is the bacteria living in their stomachs doing the job. Furthermore, because of much shorter generation times of bacteria, the symbiotic microbiota can reflect changes in the environment faster and thus provide time for the host genome to evolve. Consequently, this gives the holobiont better chances to adapt to environmental changes and hence survive.A vast majority of the symbiotic bacteria dwells in our gut. Recent research shows how important these microorganisms are for various processes we used to associate only with the central nervous system, namely with the brain. The impact of the gut microbiota on the brain begins as early as during the development of the brain itself. The microbiota is necessary for effective myelination of prefrontal cortex – the part of the brain dealing with emotions. Moreover, the bacteria seem to influence the progress of our motor control. On the other hand, brains of animals raised in sterile environments lack this structural integrity.Microorganisms also influence the amygdala, affecting the stress response. This indicates that the influence of bacteria may spill over into every aspect of what it means to be a conscious, living organism. However, the communication is bidirectional, so our emotional states have at the same time an impact on the microbiome structure.Q.Which of the following sets of words/phrases best serves as keywords to the passage?a)Microorganisms; Symbiosis; Genetic evolution; Emotional statesb)Microbiota; Consciousness; Holobiont; Brain developmentc)Philosophy; Holobiont; Bacteria; Nervous systemd)Consciousness; Brain; Gut microbes; SymbiosisCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for Directions:Read the following passage carefully and answer the given question.We are never alone. And by this statement, I do not intend to argue for existence of some supernatural entities. We are never alone because we all share our bodies with trillions of symbiotic microorganisms that perform various physiological functions crucial for our health. In fact, they may be responsible for even more than that. The symbiotic microbiota is an important part of the complex system constituting our consciousness. By consciousness, I mean the type called phenomenal consciousness which stands for the subjective experience of what is it like to be someone.If we look at the contemporary literature on consciousness, we can see that the current trend in philosophy of mind is to focus on the role of the brain. This seems quite reasonable since for so long we thought that it is just the brain that creates our mind. However, new biological discoveries in the last decade suggest that we were wrong and there are also other actors at play with a causal impact on our mental states.We must also reject the already outdated idea that we as biological entities are unitary individuals. What constitutes us as biological organisms is actually not just our body mass in the sense of organs, muscles, bones, etc., but also the microorganisms living in symbiosis with our bodies. However, to prove that two entities living together are a biological individual, one needs to prove that there is a shared functionality. Inferring that two entities are a unique individual from the fact that they share the same physical boundaries is insufficient.The symbiotic bacteria are responsible for various physiological processes in our bodies. Scientists call the biological entity referring to the host and its microbiota holobiont. The holobiont concept of an individual applies to the vast majority of organisms on Earth. The typical example of symbiosis is the digestive process of cow. Cows are not capable of digesting grass themselves; it is the bacteria living in their stomachs doing the job. Furthermore, because of much shorter generation times of bacteria, the symbiotic microbiota can reflect changes in the environment faster and thus provide time for the host genome to evolve. Consequently, this gives the holobiont better chances to adapt to environmental changes and hence survive.A vast majority of the symbiotic bacteria dwells in our gut. Recent research shows how important these microorganisms are for various processes we used to associate only with the central nervous system, namely with the brain. The impact of the gut microbiota on the brain begins as early as during the development of the brain itself. The microbiota is necessary for effective myelination of prefrontal cortex – the part of the brain dealing with emotions. Moreover, the bacteria seem to influence the progress of our motor control. On the other hand, brains of animals raised in sterile environments lack this structural integrity.Microorganisms also influence the amygdala, affecting the stress response. This indicates that the influence of bacteria may spill over into every aspect of what it means to be a conscious, living organism. However, the communication is bidirectional, so our emotional states have at the same time an impact on the microbiome structure.Q.Which of the following sets of words/phrases best serves as keywords to the passage?a)Microorganisms; Symbiosis; Genetic evolution; Emotional statesb)Microbiota; Consciousness; Holobiont; Brain developmentc)Philosophy; Holobiont; Bacteria; Nervous systemd)Consciousness; Brain; Gut microbes; SymbiosisCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of Directions:Read the following passage carefully and answer the given question.We are never alone. And by this statement, I do not intend to argue for existence of some supernatural entities. We are never alone because we all share our bodies with trillions of symbiotic microorganisms that perform various physiological functions crucial for our health. In fact, they may be responsible for even more than that. The symbiotic microbiota is an important part of the complex system constituting our consciousness. By consciousness, I mean the type called phenomenal consciousness which stands for the subjective experience of what is it like to be someone.If we look at the contemporary literature on consciousness, we can see that the current trend in philosophy of mind is to focus on the role of the brain. This seems quite reasonable since for so long we thought that it is just the brain that creates our mind. However, new biological discoveries in the last decade suggest that we were wrong and there are also other actors at play with a causal impact on our mental states.We must also reject the already outdated idea that we as biological entities are unitary individuals. What constitutes us as biological organisms is actually not just our body mass in the sense of organs, muscles, bones, etc., but also the microorganisms living in symbiosis with our bodies. However, to prove that two entities living together are a biological individual, one needs to prove that there is a shared functionality. Inferring that two entities are a unique individual from the fact that they share the same physical boundaries is insufficient.The symbiotic bacteria are responsible for various physiological processes in our bodies. Scientists call the biological entity referring to the host and its microbiota holobiont. The holobiont concept of an individual applies to the vast majority of organisms on Earth. The typical example of symbiosis is the digestive process of cow. Cows are not capable of digesting grass themselves; it is the bacteria living in their stomachs doing the job. Furthermore, because of much shorter generation times of bacteria, the symbiotic microbiota can reflect changes in the environment faster and thus provide time for the host genome to evolve. Consequently, this gives the holobiont better chances to adapt to environmental changes and hence survive.A vast majority of the symbiotic bacteria dwells in our gut. Recent research shows how important these microorganisms are for various processes we used to associate only with the central nervous system, namely with the brain. The impact of the gut microbiota on the brain begins as early as during the development of the brain itself. The microbiota is necessary for effective myelination of prefrontal cortex – the part of the brain dealing with emotions. Moreover, the bacteria seem to influence the progress of our motor control. On the other hand, brains of animals raised in sterile environments lack this structural integrity.Microorganisms also influence the amygdala, affecting the stress response. This indicates that the influence of bacteria may spill over into every aspect of what it means to be a conscious, living organism. However, the communication is bidirectional, so our emotional states have at the same time an impact on the microbiome structure.Q.Which of the following sets of words/phrases best serves as keywords to the passage?a)Microorganisms; Symbiosis; Genetic evolution; Emotional statesb)Microbiota; Consciousness; Holobiont; Brain developmentc)Philosophy; Holobiont; Bacteria; Nervous systemd)Consciousness; Brain; Gut microbes; SymbiosisCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Directions:Read the following passage carefully and answer the given question.We are never alone. And by this statement, I do not intend to argue for existence of some supernatural entities. We are never alone because we all share our bodies with trillions of symbiotic microorganisms that perform various physiological functions crucial for our health. In fact, they may be responsible for even more than that. The symbiotic microbiota is an important part of the complex system constituting our consciousness. By consciousness, I mean the type called phenomenal consciousness which stands for the subjective experience of what is it like to be someone.If we look at the contemporary literature on consciousness, we can see that the current trend in philosophy of mind is to focus on the role of the brain. This seems quite reasonable since for so long we thought that it is just the brain that creates our mind. However, new biological discoveries in the last decade suggest that we were wrong and there are also other actors at play with a causal impact on our mental states.We must also reject the already outdated idea that we as biological entities are unitary individuals. What constitutes us as biological organisms is actually not just our body mass in the sense of organs, muscles, bones, etc., but also the microorganisms living in symbiosis with our bodies. However, to prove that two entities living together are a biological individual, one needs to prove that there is a shared functionality. Inferring that two entities are a unique individual from the fact that they share the same physical boundaries is insufficient.The symbiotic bacteria are responsible for various physiological processes in our bodies. Scientists call the biological entity referring to the host and its microbiota holobiont. The holobiont concept of an individual applies to the vast majority of organisms on Earth. The typical example of symbiosis is the digestive process of cow. Cows are not capable of digesting grass themselves; it is the bacteria living in their stomachs doing the job. Furthermore, because of much shorter generation times of bacteria, the symbiotic microbiota can reflect changes in the environment faster and thus provide time for the host genome to evolve. Consequently, this gives the holobiont better chances to adapt to environmental changes and hence survive.A vast majority of the symbiotic bacteria dwells in our gut. Recent research shows how important these microorganisms are for various processes we used to associate only with the central nervous system, namely with the brain. The impact of the gut microbiota on the brain begins as early as during the development of the brain itself. The microbiota is necessary for effective myelination of prefrontal cortex – the part of the brain dealing with emotions. Moreover, the bacteria seem to influence the progress of our motor control. On the other hand, brains of animals raised in sterile environments lack this structural integrity.Microorganisms also influence the amygdala, affecting the stress response. This indicates that the influence of bacteria may spill over into every aspect of what it means to be a conscious, living organism. However, the communication is bidirectional, so our emotional states have at the same time an impact on the microbiome structure.Q.Which of the following sets of words/phrases best serves as keywords to the passage?a)Microorganisms; Symbiosis; Genetic evolution; Emotional statesb)Microbiota; Consciousness; Holobiont; Brain developmentc)Philosophy; Holobiont; Bacteria; Nervous systemd)Consciousness; Brain; Gut microbes; SymbiosisCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice CAT tests.