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.

What is a food chain consisting of autotrophs, heterotrophs, and carnivores called?

A. Grazing food chain
B. Quaternary food chain
C. Parasitic food chain
D. Detritus food chain
Answer» B. Quaternary food chain
2.

What is a food chain beginning with detritus on which decomposers feed called?

A. Grazing food chain
B. Parasitic food chain
C. Primary food chain
D. Detritus food chain
Answer» E.
3.

What is a parasitic food chain alternatively called?

A. Detritus food chain
B. Auxilliary food chain
C. Grazing food chain
D. Trophic level
Answer» C. Grazing food chain
4.

Which organisms do not have any fixed trophic levels?

A. Decomposers
B. Autotrophs
C. Parasites
D. Carnivores
Answer» D. Carnivores
5.

Which organisms are included in the last trophic level?

A. Autotrophs
B. Decomposers
C. Carnivores
D. Producers
Answer» C. Carnivores
6.

What is the number of trophic levels equal to?

A. Number of producers
B. Number of consumers
C. Number of divisions in a food chain
D. Number of carnivores
Answer» D. Number of carnivores
7.

What is the step or division that organisms occupy in a food chain that is characterized by the method of obtaining its nutrition to fulfill its energy requirements called?

A. Trophic level
B. Food chain
C. Food web
D. Food pyramid
Answer» B. Food chain
8.

To which trophic level do top or ultimate carnivores belong?

A. T<sub>1</sub>
B. T<sub>3</sub>
C. T<sub>4</sub>
D. T<sub>10</sub>
Answer» D. T<sub>10</sub>
9.

How many levels do carnivores occupy?

A. 8
B. 1
C. 5
D. 3
Answer» E.
10.

Which are the three types of consumers?

A. Autotrophs, heterotrophs, and decomposers
B. Herbivores, carnivores, and decomposers
C. Producers, heterotrophs, and decomposers
D. Herbivores, heterotrophs, and carnivores
Answer» C. Producers, heterotrophs, and decomposers
11.

To which trophic level do producers (photosynthesizers or autotrophs) belong?

A. Second
B. Third
C. First
D. Fifth
Answer» D. Fifth
12.

What are the organisms that cannot manufacture their own food and obtain ready-made organic food from producers called?

A. Decomposers
B. Autotrophs
C. Scavengers
D. Consumers
Answer» E.
13.

What is the food chain beginning with host and ending with a parasite (ecto as well as endoparasite) called?

A. Detritus food chain
B. Parasitic food chain
C. Grazing food chain
D. Terrestrial food chain
Answer» C. Grazing food chain
14.

What is a network of food chains interconnecting at various trophic levels and representing feeding relationships within a community called?

A. Food web
B. Decomposers
C. Herbivores
D. Food industry
Answer» B. Decomposers
15.

What is a group of organisms that transfer food energy through a linear series of processes such as eating and being eaten called?

A. Detritus
B. Food chain
C. Decomposers
D. Producers
Answer» C. Decomposers