Class 12 Exam > Class 12 Questions > Which factor is responsible for the changes i...
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Which factor is responsible for the changes in the 3 phases in a life cycle?
- a)Blood
- b)Hormones
- c)Respiration
- d)Nervous system (in animals)
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
Which factor is responsible for the changes in the 3 phases in a life ...
Explanation:
Hormones play a crucial role in the changes that occur during the three phases of a life cycle, which are the growth phase, reproductive phase, and senescence phase. Hormones are chemical messengers produced by the endocrine system that regulate various physiological processes, including growth, development, and reproduction.
Growth Phase:
During the growth phase, hormones such as growth hormone (GH) and insulin-like growth factor (IGF) stimulate cell division and differentiation, leading to an increase in body size and the development of various organs and tissues.
Reproductive Phase:
During the reproductive phase, hormones such as estrogen and testosterone play a crucial role in the development of secondary sexual characteristics, gametogenesis (production of gametes), and mating behavior.
Senescence Phase:
During the senescence phase, the production of hormones declines, leading to a gradual deterioration of physiological functions, including a decrease in fertility and an increase in susceptibility to diseases.
Conclusion:
Therefore, hormones are responsible for the changes that occur during the three phases of a life cycle, and any disruption in their production or regulation can lead to developmental abnormalities, infertility, and other health issues.
Hormones play a crucial role in the changes that occur during the three phases of a life cycle, which are the growth phase, reproductive phase, and senescence phase. Hormones are chemical messengers produced by the endocrine system that regulate various physiological processes, including growth, development, and reproduction.
Growth Phase:
During the growth phase, hormones such as growth hormone (GH) and insulin-like growth factor (IGF) stimulate cell division and differentiation, leading to an increase in body size and the development of various organs and tissues.
Reproductive Phase:
During the reproductive phase, hormones such as estrogen and testosterone play a crucial role in the development of secondary sexual characteristics, gametogenesis (production of gametes), and mating behavior.
Senescence Phase:
During the senescence phase, the production of hormones declines, leading to a gradual deterioration of physiological functions, including a decrease in fertility and an increase in susceptibility to diseases.
Conclusion:
Therefore, hormones are responsible for the changes that occur during the three phases of a life cycle, and any disruption in their production or regulation can lead to developmental abnormalities, infertility, and other health issues.
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Community Answer
Which factor is responsible for the changes in the 3 phases in a life ...
Hormones are chemical messengers that travel through the bloodstream (in case of animals). Hormones are responsible for the change in the phases in both plants and animals. Hormonal change can be affected by environmental factors too.
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Which factor is responsible for the changes in the 3 phases in a life cycle?a)Bloodb)Hormonesc)Respirationd)Nervous system (in animals)Correct answer is option 'B'. Can you explain this answer?
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Which factor is responsible for the changes in the 3 phases in a life cycle?a)Bloodb)Hormonesc)Respirationd)Nervous system (in animals)Correct answer is option 'B'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Which factor is responsible for the changes in the 3 phases in a life cycle?a)Bloodb)Hormonesc)Respirationd)Nervous system (in animals)Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which factor is responsible for the changes in the 3 phases in a life cycle?a)Bloodb)Hormonesc)Respirationd)Nervous system (in animals)Correct answer is option 'B'. Can you explain this answer?.
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