CUET · BIOLOGY · PYQ PAPER 2023

'r' in exponential growth equation implies:

A Difference between the total number of births and deaths
B Extrinsic rate of natural increase
C Population density
D Intrinsic rate of natural increase

Verified Solution

Answer & Solution

Correct Answer

(D) Intrinsic rate of natural increase

Step-by-step Solution

Detailed explanation

Intrinsic rate of natural increase

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

Same subject

Match List-l with List-II:

List-I (Concepts)	List-II (Explanation)
(A) Standing state	(I) Available biomass for the consumption of heterotrophs
(B) Secondary productivity	(II) Rate of formation of organic matter by consumers
(C) Standing crop	(III) Mass of living matter in a trophic level at a given time
(D) Net primary productivity	(IV) Amount of mineral nutrients in the soil at a given time

Choose the correct answer from the options given below:

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