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

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

  • Total Questions20

  • Time Allowed20

MDCAT Biology Chapter 8 MCQ's Test

00:00
Question # 1

The root nodules bacteria fix ______ in sil air:

Question # 2

Food chains combine to form

Question # 3

--------------- begins forged from bare rocks, sand for where no previous life was found

Question # 4

Secondary consumes form ______ trophic level

Question # 5

The gross production of an ecosystem is its total

Question # 6

Monoculture is

Question # 7

The establishment of stable vegetation on an area is termed as

Question # 8

Plants growing in xeric (dry) condition are called:

Question # 9

In which types of soil does water logging occur?

Question # 10

Community structures of an ecosystem is called

Question # 11

The parasites that live outside the body of the host are called:

Question # 12

Herbaceous stage in xerosere is the __________:

Question # 13

The oxygen concentration in the air is maintained by the green plants which release it during

Question # 14

Overgrazing

Question # 15

A dominant plant of temperate deciduous forests is the :

Question # 16

Biotic components includes all the

Question # 17

In an ecosystem after succession, a new invaders are called

Question # 18

All the organisms, primarily animals, which obtain energy directly or indirectly from the produces as ready-organic food are:

Question # 19

Climax in zerosere is the establishment fo

Question # 20

Succulent plants are

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MCAT Biology Chapter 8 Important MCQ's

Sr.# Question Answer
1 One atom of chlorine can destroy up to ___________ ozone molecules?
A. One million
B. One billion
C. One thousand
D. Two million
2 ______ incorporate gaseous nitrogen from air into organic nitrogen containing compounds
A. Nitrogen fixing bacteria
B. Nitrogen degrading bacteria
C. Both A and B
D. None of above
3 Animals feed on green plants and grasses are called
A. Grazers
B. Produces
C. Consumers
D. Predators
4 Some ______ years ago human population and conversion of land to agricultural production began
A. 10,000
B. 40,000
C. 5000
D. None
5 In hydrospheric ecosystem the exchange material and transfer of energy takes place. 
A. Within water and air
B. Within water and land
C. Within water
D. Within land and air 
6 Which can't increase their weight in inorganic medium
A. Producer
B. Consumer
C. Decomposer
D. Both b & c
7 Excessive ploughing of lands in arid regions results in the development of
A. Forest
B. Deserts
C. Grassland
D. Fields
8 The study of different communities to environment is called
A. Autecology
B. Synecology
C. Microbiology
D. Ornithology
9 Which of these diseases is not infectious?
A. Measles
B. Influenza
C. Pneumonia
D. Tetany
10 Which of the following is an example of primary succession
A. Foliage stage
B. Moss stage
C. Hydrosere and xerosere
D. None of these

Test Questions

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  • zikra rehman

    zikra rehman

    13 Oct 2018

    some answerz are given wrong????

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  • khaqan

    khaqan

    10 Sep 2018

    i have got 94 marks over 100 please add me to highh scorer

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  • Wahab

    Wahab

    26 May 2018

    Add my name in high scorers

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