The plants and animals that cannot maintain a constant internal environment are called:

Question

Which of the following statements are correct?
Species that invade a bare area are called: Pioneer species.
In primary succession on rocks, the pioneers are usually lichens.
In primary succession in water, the pioneers are reed swamps. In secondary succession,
species that invade depend on soil, water, and environment.
Choose the correct answer from the options given below:

Answer 1

To identify organisms unable to maintain a stable internal state, one must grasp how living things interact with their surroundings.

Environmental biology classifies organisms by their approach to internal environment regulation amid external shifts. The main classifications are:

Regulators: Organisms that preserve a steady internal state despite external fluctuations, utilizing internal controls for bodily functions (e.g., mammals, birds).
Migrators: Organisms that relocate to escape harsh environmental conditions (e.g., birds migrating south for winter).
Conformers: Organisms whose internal environment mirrors external conditions, lacking active internal regulation (e.g., most plants, some aquatic life).
Suspenders: Organisms that enter dormancy to endure adverse conditions, like hibernation or seed dormancy.

Based on this, organisms that cannot maintain a consistent internal environment and instead adapt to external conditions are classified as: Conformers

List-I (Concept)	List-II (Proposed by)
(A) Ecology	(II) Norman Myers
(B) Ecosystem	(IV) Ernst Haeckel
(C) Human population growth	(I) Sir Arthur Tansley
(D) Hot spots	(III) T R Malthus

The plants and animals that cannot maintain a constant internal environment are called:

The Correct Option is C

Solution and Explanation

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