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

An animal that preys other animals is a

Question # 2

Biosphere is spread out over the surface of planet earth extending about ______ kilometers in the upper reaches of atmosphere and also in same distance into the depths of oceans

Question # 3

Monoculture is

Question # 4

The tundra vegetation supports the animals called:

Question # 5

Decomposers form _______ trophic level

Question # 6

Ozone is present at about ________ km above earth

Question # 7

What are the environmental buffers?

Question # 8

Coniferous forests of high altitude are known as:

Question # 9

A dominant plant of temperate deciduous forests is the :

Question # 10

Which of the following is not the true about predation

Question # 11

In which types of soil does water logging occur?

Question # 12

About 20 years ago what was the rate at which human population was increasing

Question # 13

A thin layer of earth in which all living organisms live is called:

Question # 14

Fungi and bacteria are:

Question # 15

The last stage of plant succession is

Question # 16

Consumers

Question # 17

The chief reservoir of nitrogen is the

Question # 18

Producers are

Question # 19

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

Question # 20

Several bacteria in soil are able to oxidize ammonia or ammonium ions, this oxidation is known as:

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MCAT Biology Chapter 8 Important MCQ's

Sr.# Question Answer
1 Plants growing in xeric condition are called
A. Xerophytes
B. Mesophytes
C. Hydrophytes
D. Schizophytes
2 Crustose refers to:
A. Aquatic lifeless structure
B. Aquatic lively structure
C. Land lively structure
D. Land lifeless structure
3 Food web maintains the stability of
A. Environment
B. Biosphere
C. Ecosystem
D. Biotic components
4 When bacteria break down nitrates and release nitrogen  back into atmosphere this process is called:
A. Nitrification 
B. Denitrification 
C. Ammonification 
D. Deamination 
5 Ornithology is the sudy of
A. Mammals
B. Reptiles
C. Insects
D. Birds
6 Shallow water zone of the lake near the shore is called:
A. Intertidal zone
B. Littoral zone
C. profundal zone
D. Limnetic zone
7 Due to the trampling of the soil layer by the hooves of grazing animals the rain water will:
A. Penetrate deep into the soil
B. Not penetrate this soil
C. Stop on the soil
D. Do not affect this layer of  the soil
8 A relationship that harms one of the partners is called
A. Parasitism
B. Symbiosis
C. Commensalism
D. None
9 The example of decomposers of the ecosystem are the
A. Fungi
B. Fungi and bacteria
C. Bacteria
D. Viruses
10 The soil of the deciduous forest is:
A. Yellow
B. Grayish brown
C. Grayish black
D. Black

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