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With reference to homeostasis, consider the following statements:
It refers to the maintenance of the constancy of an organism’s internal environment despite varying external environmental conditions.
Only mammals are capable of maintaining homeostasis.
Which of the statements given above is/are correct?
- a)1 only
- b)2 only
- c)Both 1 and 2
- d)Neither 1 nor 2
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
With reference to homeostasis, consider the following statements: I...
- Statement 1 is correct: The maintaining of the constancy of an organism‘s internal environment despite varying external environmental conditions is called homeostasis. · Some organisms are able to maintain homeostasis by physiological (sometimes behavioural also) means which ensures constant body temperature, constant osmotic concentration, etc. All birds and mammals, and a very few lower vertebrate and invertebrate species are indeed capable of such regulation (thermoregulation and osmoregulation).
- Statement 2 is not correct: An overwhelming majority (99 per cent) of animals and nearly all plants cannot maintain a constant internal environment. Their body temperature changes with the ambient temperature. In aquatic animals, the osmotic concentration of the body fluids change with that of the ambient water osmotic concentration. These animals and plants are called conformers. ·
- Thermoregulation is energetically expensive for many organisms. This is particularly true for small animals like shrews and humming birds. Heat loss or heat gain is a function of surface area. Since small animals have a larger surface area relative to their volume, they tend to lose body heat very fast when it is cold outside; then they have to expend much energy to generate body heat through metabolism.
Most Upvoted Answer
With reference to homeostasis, consider the following statements: I...
Homeostasis is the ability of an organism to maintain internal stability despite changes in the external environment. The two statements given in the question are:
1. It refers to the maintenance of the constancy of an organism’s internal environment despite varying external environmental conditions.
This statement is correct. Homeostasis is a fundamental process that allows an organism to maintain a stable internal environment. This is done by regulating various physiological processes such as temperature, pH, glucose levels, and electrolyte balance. These processes are tightly controlled to ensure that the internal environment remains constant, even when the external environment changes.
2. Only mammals are capable of maintaining homeostasis.
This statement is incorrect. Homeostasis is a universal process that occurs in all living organisms, not just mammals. For example, plants are capable of maintaining water balance through the process of transpiration, while insects can regulate their body temperature through a process called thermoregulation. All living organisms have mechanisms to maintain homeostasis, although the specific processes may differ depending on the organism.
In conclusion, statement 1 is correct while statement 2 is incorrect. Homeostasis is a fundamental process that occurs in all living organisms and is essential for their survival.
1. It refers to the maintenance of the constancy of an organism’s internal environment despite varying external environmental conditions.
This statement is correct. Homeostasis is a fundamental process that allows an organism to maintain a stable internal environment. This is done by regulating various physiological processes such as temperature, pH, glucose levels, and electrolyte balance. These processes are tightly controlled to ensure that the internal environment remains constant, even when the external environment changes.
2. Only mammals are capable of maintaining homeostasis.
This statement is incorrect. Homeostasis is a universal process that occurs in all living organisms, not just mammals. For example, plants are capable of maintaining water balance through the process of transpiration, while insects can regulate their body temperature through a process called thermoregulation. All living organisms have mechanisms to maintain homeostasis, although the specific processes may differ depending on the organism.
In conclusion, statement 1 is correct while statement 2 is incorrect. Homeostasis is a fundamental process that occurs in all living organisms and is essential for their survival.
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With reference to homeostasis, consider the following statements: It refers to the maintenance of the constancy of an organism’s internal environment despite varying external environmental conditions. Only mammals are capable of maintaining homeostasis. Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'A'. Can you explain this answer?
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