Explore topic-wise MCQs in Biology.

This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.

1.

Which relationship does an orchid growing as an epiphyte on a tree describe?

A. Commensalism
B. Mutualism
C. Parasitism
D. Amensalism
Answer» B. Mutualism
2.

Which relation does sharing of food describes?

A. Competition
B. Mutualism
C. Parasitism
D. Commensalism
Answer» E.
3.

What percent of land plants rely on mycorrhizal relationships?

A. 82%
B. 52%
C. 29%
D. 10%
Answer» B. 52%
4.

Which type of interaction does a mycorrhiza show?

A. Predation
B. Parasitism
C. Mutualism
D. Commensalism
Answer» D. Commensalism
5.

Who produces the cellulase in the intestine of ungulates?

A. Bacteria
B. Mosses
C. Lichens
D. Protozoa
Answer» B. Mosses
6.

Who benefits the ungulates?

A. Sponges
B. Virus
C. Bacteria
D. Grass
Answer» D. Grass
7.

What kind of interaction is mutualism?

A. Negative Interspecific
B. Positive Intraspecific
C. Negative Intraspecific
D. Positive Interspecific
Answer» E.
8.

What happens to two species in mutualism?

A. Only one is benefited
B. Both live differently
C. Both are benefited
D. Only one is harmed
Answer» D. Only one is harmed
9.

What is a biological interaction between organisms of different species in which each individual receives benefit known?

A. Parasitism
B. Competition
C. Commensalism
D. Mutualism
Answer» E.
10.

What is a competition between the individuals of two separate species for sharing the same resources in the same area known?

A. Apparent competition
B. Interspecific competition
C. Interference competition
D. Intraspecific competition
Answer» C. Interference competition
11.

In which two species apparent competition occurs indirectly?

A. Compete for space
B. Fight for the same resources and mate
C. Have a common prey
D. Share the same resources in a territory
Answer» D. Share the same resources in a territory
12.

Where exploitation competition does occur indirectly?

A. One individual prevents the survival and reproduction of others
B. Two species have common prey
C. Two separate species compete for different resources and space
D. Organisms compete for common space
Answer» E.
13.

Where the interference competition does occur directly between individuals?

A. Two species have a common prey
B. One individual prevents the reproduction of others
C. Organism compete for space
D. Two separate species compete for the same resources and space
Answer» C. Organism compete for space
14.

Who gave the following sentence Two closely related species competing for the same resources cannot co-exist indefinitely and the competitively inferior will be eliminated eventually ?

A. Gause s competitive exclusion principle
B. Mutation Theory
C. Theory of Special Creation
D. Theory of Organic Evolution
Answer» B. Mutation Theory
15.

What is the interaction between species in which the fitness of one overpowers the presence and fitness of another called?

A. Competition
B. Mutualism
C. Parasitism
D. Commensalism
Answer» B. Mutualism