MDCAT Biology Chapter 8 MCQ Test With Answer for (Evolution)

While preparing for the test, the students should allocate the proper time to all the topics. The candidates who intend to appear in the MDCAT must solve the chapter-wise MCQs provided on this platform. Through solving the MCQs, the students can better understand the topic and learn the topics for a longer time.

MCQ's Test For MDCAT Biology Chapter 8 MCQ's Test

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MDCAT Biology Chapter 8 MCQ's Test

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Question # 1

Parasites live outside of the body are

Question # 2

In limnetic zone the phytoplankton are:

Question # 3

The ecosystem consists of interacting components,

Question # 4

Acid rain is mainly due to

Question # 5

The establishment of woody plants that inhibits the growth of most plants other than mosses in succession is known as

Question # 6

Iron, iodine and zinc required by the organisms are said to the:

Question # 7

All food chain and food web begin with:

Question # 8

The biotic components of the ecosystem are the

Question # 9

------------------- are the autotrophs that capture and bring light energy into ecosystem

Question # 10

_____is the study of interaction between living organism and their environment

Question # 11

Predation is a process of

Question # 12

A process in which one organism get benefit from the relationship is known as

Question # 13

The ecosystem consists of two basic interacting components:

Question # 14

Algae are

Question # 15

The deficiency of which one of the following is cause of goiter

Question # 16

Bacterial and fungi are mainly included in the group of

Question # 17

The succession started after destruction of an area is called as

Question # 18

Food web maintains the stability of

Question # 19

Biosphere is spread over the surface of plant earth, extending upto:

Question # 20

Layer of earth where life is present is called

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MCAT Biology Chapter 8 Important MCQ's

Sr.# Question Answer
1 In an ecosystem after succession, a new invaders are called
A. Pioneers
B. Predecessors
C. Climax community
D. None of these
2 A thin layer of earth in which all living organisms live is called:
A. Biosphere
B. Habitat
C. Niche
D. Hydrosphere
3 Consumers are ______ organisms
A. Autotrophic
B. Heterotrophic
C. Decomposers
D. None of above
4 Which one of the following is an example of commensalism
A. Nodulated roots
B. Remoras attached to sharks
C. Mycorrhiza
D. Commensalism
5 Salt water ocean and sea are the largest ecosystem which cover __________ of earth surfaces.
A. 70%
B. 71%
C. 80%
D. 65%
6 When bacteria in soil oxidize ammonia or ammonium ions this is called:
A. Oxidation
B. Denitrification 
C. Ammonification
D. Nitrification 
7 The ecosystem consists of two basic interacting components:
A. Living and physical
B. Biotic and abiotic
C. Living and biotic
D. Both a & b
8 Secondary consumes form ______ trophic level
A. First
B. Second
C. Third
D. None of above
9 A symbiotic association between a fungus and the roots of higher plants is known as
A. Lichen
B. Parasitism
C. Mycorrhiza
D. Commensalism
10 The major unit of ecology is the:
A. Physical component
B. Biotic component
C. Ecosystem
D. Logos

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