Read the following statements and select the incorrect ones.(i) Homeos...
About 99 percent of animals and nearly all plants do not have a mechanism to maintain a constant internal body environment. Their body temperature changes with the surrounding temperature. They are called conformers. They change their body temperature according to the ambient temperature.
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Read the following statements and select the incorrect ones.(i) Homeos...
The incorrect statements are (iii) 99% of animals and nearly all plants are regulators and (iv) the conformers are able to maintain their body temperature despite changes in ambient temperature.
Explanation:
(i) Homeostasis ensures constant osmotic concentration of cells:
This statement is correct. Homeostasis is the process by which organisms maintain a stable internal environment. One of the important aspects of homeostasis is maintaining the osmotic concentration of cells, which refers to the balance of water and solutes inside and outside of cells. Through various mechanisms such as osmoregulation, organisms are able to regulate their osmotic concentration and keep it constant.
(ii) The famous Keolado National Park (Bharatpur) in Rajasthan hosts thousands of migratory birds coming from Siberia, in every winter:
This statement is correct. Keoladeo National Park, also known as Bharatpur Bird Sanctuary, is a famous bird sanctuary in Rajasthan, India. It is a major wintering ground for migratory birds, including thousands of birds that come from Siberia every winter.
(iii) 99% of animals and nearly all plants are regulators:
This statement is incorrect. In reality, only a small percentage of animals are regulators. Regulators are organisms that are able to maintain a constant internal environment regardless of external conditions. Examples of regulators include mammals and birds. On the other hand, the majority of animals are conformers, which means their internal environment changes with the external environment. Plants, on the other hand, are mainly regulators as they have limited ability to regulate their internal environment.
(iv) The conformers are able to maintain their body temperature despite changes in ambient temperature:
This statement is incorrect. Conformers, as mentioned earlier, are organisms that do not regulate their internal environment. They conform to the changes in the external environment, including temperature. Therefore, they are not able to maintain a constant body temperature despite changes in ambient temperature. Examples of conformers include most invertebrates and some ectothermic vertebrates like reptiles and amphibians.
In conclusion, the incorrect statements are (iii) 99% of animals and nearly all plants are regulators and (iv) the conformers are able to maintain their body temperature despite changes in ambient temperature.
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