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

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Question # 1

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

Question # 2

All food chains and food webs begin from

Question # 3

The actual location or place where an organism lives is called its:

Question # 4

Plants growing in xeric (dry) condition are called:

Question # 5

Fungi are

Question # 6

The dead plants and animal bodies in lakes are decomposed by certain:

Question # 7

Many cold=blooded animals remain inactive during winter season; it is called:

Question # 8

Biotic components includes all the

Question # 9

In littoral zone, the water is:

Question # 10

Which is not a seral stage

Question # 11

Consumers

Question # 12

The study of relationship of different communities (grouping of population) to environment is called:

Question # 13

The organisms found in the gut of the termites which help it digest wood are the

Question # 14

The succession which occurs in dry soil or rock is

Question # 15

Two main types of environment factors are:

Question # 16

Crustose refers to:

Question # 17

The study of human population and factor affecting it is called

Question # 18

Dormancy in animals through a drought or dry season is called:

Question # 19

The ecosystem consists of interacting components,

Question # 20

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

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MCAT Biology Chapter 8 Important MCQ's

Sr.# Question Answer
1 Global warming is the result of
A. Ozone layer depletion
B. Acid rain
C. Green house gases
D. All of them
2 All the organisms, primarily animals, which obtain energy directly or indirectly from the produces as ready-organic food are:
A. Decomposers
B. Consumers
C. Detritivores
D. Scavengers
3 The oxygen concentration in the air is maintained by the green plants which release it during
A. Fermentation
B. Respiration
C. Photosynthesis
D. Chemosynthesis
4 A lichen is the symbiotic association between a
A. Fungus and a bryophyte
B. Roots of higher plants and an alga
C. Fungus and an alga
D. Roots of a higher plants and a fungus
5 Iron, iodine and zinc required by the organisms are said to the:
A. Macronutrients
B. Micronutrients 
C. Moderate nutrients
D. Assimilation 
6 The ecosystem present on land or soil is called
A. Terrestrial ecosystem
B. Lithospheric ecosystem
C. A and B
D. None
7 The study of relationship of an organism to their environment is knows as:
A. biology
B. ecology
C. zoology
D. mycology
8 The relationship in which only one organism benefit from the relationship. The other is not affected at all.
A. Parasitism
B. Commensalism
C. Predation
D. Mutualism
9 All food chains and food webs begin from
A. Consumers
B. Green plants
C. Fungi and bryophytes
D. Dead organic matter
10 A change in the community structure of an ecosystem over a period of time is:
A. Progression
B. Sequence
C. Succession
D. String

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