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

The correct sequence in a food chain is

Question # 2

Which element is the most potent source for the depletion of ozone layer

Question # 3

All populations within an ecosystem are known as a:

Question # 4

The predeter and prey relationship is called as

Question # 5

Much of nitrogen found in the soil is the result of:

Question # 6

The association between a host and parasite is called

Question # 7

Decomposers form _______ trophic level

Question # 8

The amount of energy left after plants have met their respiratory needs is net primary production, which shows up as plant:

Question # 9

Overgrazing

Question # 10

A symbiotic relationship that benefits one species & neither helps nor harms the other is called

Question # 11

Grassland which do not have woody plants are called:

Question # 12

A group of interbreeding individuals of same species occurring together in space and time is called:

Question # 13

In an ecosystem sheep and rabbits are examples of

Question # 14

Salt water ocean and sea are the largest ecosystem which cover __________ of earth surfaces.

Question # 15

This is an association between a host and a parasite

Question # 16

What are the environmental buffers?

Question # 17

A process in which green plants are eaten by animals is called

Question # 18

All food chains and food webs begin from

Question # 19

Lichen is the example of

Question # 20

The succession started on bare area is called as

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MCAT Biology Chapter 8 Important MCQ's

Sr.# Question Answer
1 Grazers feed mainly on which kind of plants
A. Tree leaves
B. Shrubs
C. Grasses
D. Cereals
2 The lake ecosystem can be divided into ______ number of zones:
A. Two
B. Three
C. Four
D. Five
3 Producers are
A. Heterophs
B. Green plants
C. Carnivores
D. Herbivores
4 Omnivores are described by how many trophic levels
A. Any 2
B. Any 3
C. Any 1
D. Primary & any higher
5 The establishment of stable vegetation on an area is termed as
A. Plant succession
B. Animal succession
C. Succession
D. All of the above
6 Forest ecosystem is subdivided into ____ type of forests.
A. Two
B. Four
C. Five
D. Three
7 In coniferous alpine and boreal forests the winter is:
A. Longer and little
B. Shorter and colder
C. Longer and colder
D. Shorter and little warmer
8 The process by which the limited amount of nitrogen is circulated and recirculated throughout the world of living organisms is known as the
A. Nitrogen cycle
B. Nitrogen path way
C. Nitrogen depletion
D. None of above
9 Plants growing in xeric condition are called
A. Xerophytes
B. Mesophytes
C. Hydrophytes
D. Schizophytes
10 In temperature deciduous forest the average rainfall is:
A. 650 -1500 mm
B. 750 -1500 mm
C. 800 - 1600 mm
D. 700 - 1500 mm

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