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

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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

Heterotrophic organisms are basically:

Question # 2

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

Question # 3

Community structures of an ecosystem is called

Question # 4

Diseases in living organisms caused by parasites are called:

Question # 5

A short food chain of two or three links supports a community:

Question # 6

Nutrient cycle are also called us:

Question # 7

When bacteria break down nitrates and release nitrogen  back into atmosphere this process is called:

Question # 8

The legume plants, Pea and been are the hosts to symbiont bacteria which inhabit the roots forming root:

Question # 9

Two main types of environment factors are:

Question # 10

Mycorrhiza is an association of

Question # 11

Nutrients required by organism in large amount like water, carbon, hydrogen, oxygen, nitrogen, phosphorus, sulphur and  calcium are:

Question # 12

The productivity of aquatic ecosystem is basically determined by the:

Question # 13

Decomposers form _______ trophic level

Question # 14

Coniferous forests located at high latitude are called

Question # 15

A symbiotic association between a fungus and the roots of higher plants is known as

Question # 16

Which is not a seral stage

Question # 17

The fungi and bacteria, which obtain their energy from the dead and decaying plants and animals are:

Question # 18

bare rocks are the habitats of 

Question # 19

An ecosystem is made up of three main components:

Question # 20

After digestion, decomposers releases

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MCAT Biology Chapter 8 Important MCQ's

Sr.# Question Answer
1 Taj Mahal's marble has been affected by
A. CFC's
B. Lead pollution
C. Acid rain
D. None
2 The total energy from the sun is trapped by the producers in an ecosystem is about:
A. 20%
B. 10%
C. 5%
D. 1%
3 The term niche in ecolgy was first proposed by:
A. Charles Eton
B. Ernst Haeckel
C. Joseph Grinnell
D. Carolus Linnaeus
4 ______ symbiont the root nodules of legume plants
A. Virus
B. Fungi
C. Bacteria
D. Nematods
5 An association between certain fungi and the roots of plants growing in acid soil is:
A. Lichens
B. Predation
C. Mycorrhiza
D. Commensalism
6 Which disease is due to nutritional deficiency
A. Scurvy
B. Diabetes
C. Herpes
D. Diphtheria
7 Producers are
A. Heterophs
B. Green plants
C. Carnivores
D. Herbivores
8 Community structures of an ecosystem is called
A. Biosphere
B. Succession
C. Progression
D. Climax community
9 Bacterial and fungi are mainly included in the group of
A. Consumers
B. Decomposers
C. Producers
D. None of these
10 All food chains and food webs begin from
A. Consumers
B. Green plants
C. Fungi and bryophytes
D. Dead organic matter

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