Assertion: 99 per cent animals and nearly all plants are conformers.
Reason: During the course of evolution, the costs and benefits of maintaining a constant internal environment are taken into consideration.

Assertion : Process of maintaining a constant internal environment is known as homeostasis . Reason : Kidneys are excretory and homeostatic organs.

Nearly all plants and an overwhelming majority of animals are categorised as (A) Conformers - They can maintain a constant internal environment (B) Conformers - They cannot maintain a constant internal environment (C) Regulators - They can maintain a constant internal environment (D) Regulators - They cannot maintain a constant internal environment

Read the following statements and select the correct ones. i) All vertebrates are capable of osmoregulation and thermoregulation. ii) Some species have evolved the ability to regulate, but only over a limited range of environmental conditions, beyond which they simply conform. iii)99 per cent of animals and nearly all plants can- not maintain a constant internal environment. - iv)Animals arc either perfect regulators or perfect conformers.

Read the following statements and select the correct ones. i) All vertebrates are capable of osmoregulation and thermoregulation. ii) Some species have evolved the ability to regulate, but only over a limited range of environmental conditions, beyond which they simply conform. iii)99 per cent of animals and nearly all plants can- not maintain a constant internal environment. - iv)Animals arc either perfect regulators or perfect conformers.

Read the following statement carefully and give the answer :- (A) The organism try to maintain the constancy of its internal environment this process is called homeostasis (B) A very few lower vertebrate and invertebrate species are also indeed capable of regulation (C ) An overwhelming majority (99%) of animals and nearly all plant cannot maintain a constant internal enviroment (D) Some species have evolved the ability to conferm but only over a limited range of environment conditions beyond which they simply regulate

Read the following statemetns and select the incorrect ones. (i) Homeostasis constant osmotic concentration of cells. (ii) The famous keoladeo National Park (Bharapur) in Rajasthan hosts thousands of migratory birds coming from Siberia, in every winter. (iii) 99% of animals and nearly all plants are regulators. (iv) The conformers are able to maintain their body temperature inspite of changes in ambient temperature.