1
NEET 2026
MCQ (Single Correct Answer)
+4
-1
Change Language

Which of the following equations depicts Verhulst-Pearl logistic population growth?

A

$\frac{\mathrm{dN}}{\mathrm{dt}}=\mathrm{rN}\left(\frac{\mathrm{K}+\mathrm{N}}{\mathrm{K}}\right)$.

B

$\frac{\mathrm{dN}}{\mathrm{dt}}=\mathrm{rN}\left(\frac{\mathrm{K}-\mathrm{N}}{\mathrm{K}}\right)$

C

$\frac{\mathrm{dN}}{\mathrm{dt}}=\mathrm{rN}\left(\frac{\mathrm{K}-\mathrm{N}}{\mathrm{N}}\right)$

D

$\frac{\mathrm{dN}}{\mathrm{dt}}=\mathrm{rN}\left(\frac{\mathrm{K}}{\mathrm{K}-\mathrm{N}}\right)$

2
NEET 2026
MCQ (Single Correct Answer)
+4
-1
Change Language

Which one of the following is an appropriate example of sexual deceit?

A

Female wasp and fig

B

Ophrys and bumblebee

C

Sea anemone and clown fish

D

Cuckoo and crow

3
NEET 2026
MCQ (Single Correct Answer)
+4
-1
Change Language

Choose the correct statements regarding population interactions between two species.

A. In both parasitism and commensalism, only one species benefits and the other species is harmed.

B. Both species benefit in mutualism.

C. Both species benefit in commensalism.

D. In parasitism, only one species benefits and the other species is harmed.

E. In amensalism, one species is harmed and the other is unaffected.

Choose the correct answer from the options given below:

A

B and E only

B

A and B only

C

B, D and E only

D

A and D only

4
NEET 2025
MCQ (Single Correct Answer)
+4
-1
Change Language

Epiphytes that are growing on a mango branch is an example of which of the following?

A
Predation
B
Amensalism
C
Commensalism
D
Mutualism

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