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

00:00
Question # 1

Dams and canal networks developed for irrigation purpose in Pakistan and many other countries create the problems of

Question # 2

In an ecosystem after succession, a new invaders are called

Question # 3

Enrichment of water bodies by organic nutrients is called

Question # 4

Succession starting in pond is called

Question # 5

The chemical elements essential for life in living organisms are called:

Question # 6

The study of the relationship of animals to environment is called:

Question # 7

A biotic components includes the components like:

Question # 8

A mixture of sand and clay in:

Question # 9

A group of interbreeding individual occurring in space and times is called:

Question # 10

The symbiotic relationship in which both the partners get benefit is:

Question # 11

A new system is developed after an existing ecosystem is called

Question # 12

______ symbiont the root nodules of legume plants

Question # 13

An animal that preys other animals is called:

Question # 14

______ are autotrophic organisms

Question # 15

A thin layer (zone) of earth in which all living organisms exist is called:

Question # 16

Most nitrogen moves from the soil into the roots in the form of:

Question # 17

Oxides of nitrogen are produced by burning of

Question # 18

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

Question # 19

The organisms of same species live in a same place is called

Question # 20

As the number of the predators decreases the numbering of prey:

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MCAT Biology Chapter 8 Important MCQ's

Sr.# Question Answer
1 A community is
A. A collection of plants and animals
B. Autotrophs and heterotrops
C. Population of different species living together in the same area
D. Food chain
2 The predeter and prey relationship is called as
A. Predation
B. Animes
C. Parasitism
D. None of above
3 Which one of the following is true
A. Population is a larger unit than a community
B. Bioshpere is a smaller unit than a biome
C. Biome and community are equal units
D. Biome is a larger unit than population
4 Nitrogen makes up ______ percent of the gases in atmosphere
A. 76
B. 77
C. 78
D. 98
5 The oxygen concentration in the air is maintained by the green plants which release it during
A. Fermentation
B. Respiration
C. Photosynthesis
D. Chemosynthesis
6 The solar energy used to evaporate water, heat up soil and then lost to the outer space is:
A. 99%
B. 77%
C. 55%
D. 33%
7 The study of relationship of a single population to its environment is called:
A. Autecology
B. Synecology
C. Both a & b
D. None
8 Biosphere is spread over the surface of plant earth, extending upto:
A. 8 to 10 km
B. 5 to 6 km
C. 10 to 20 km
D. 8 to 16 km
9 Water changes its temperature:
A. Faster than air
B. Same as air
C. Slower than air
D. Sometime slower and sometimes faster
10 In coniferous alpine and boreal forest the temperature ranges from:
A. 0°C to 10°C
B. Below freezing point up to 10°C
C. Below freezing point up to 15°C
D. 0°C to 15°C

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