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

There are ______ major terrestrial biomes

Question # 2

Animals feed on green plants and grasses are called

Question # 3

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

Question # 4

Xerosere starts with __________ stage.

Question # 5

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

Question # 6

The study of relationship of a single population to its environment is called:

Question # 7

The amount of energy left after plants have met their respiratory needs shows up the plant:

Question # 8

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

Question # 9

The gill pouches present in embryos of mammals :

Question # 10

Between 80 to 90% of the original energy is lost as heat as a byproduct of

Question # 11

This is a ------------------- relationship between algae and fungi

Question # 12

Decomposers form _______ trophic level

Question # 13

What is trampling

Question # 14

Basically, all animals depend on plants for their:

Question # 15

The biotic components of the ecosystem are the

Question # 16

Ecology is a ______ word.

Question # 17

The deficiency of which one of the following is cause of goiter

Question # 18

Primary succession that starts on a dry habitat is called:

Question # 19

A mixture of sand and clay in:

Question # 20

In each case succession begins with few hard invaders called:

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MCAT Biology Chapter 8 Important MCQ's

Sr.# Question Answer
1 We are reducing natural 'carbon dioxide's
A. Sources
B. Sinks
C. Both
D. None
2 When succession starts on dry soil or rocks it is called:
A. Hydrosere 
B. Derosere
C. Xerosere
D. lithosere
3 Food chains combine to form
A. Large food chain
B. Large organisms
C. Trophic levels
D. Food web
4 The nutrient cycles are also called as
A. Biogeochemical cycles
B. Biochemical cycles
C. Geo-cycles
D. All of above
5 When bacteria in soil oxidize ammonia or ammonium ions this is called:
A. Oxidation
B. Denitrification 
C. Ammonification
D. Nitrification 
6 Lichens have thick crust and live in extreme conditions is a successional stage of
A. Foliage lichen
B. Crustose lichen
C. Moss stage
D. All of these
7 There are ______ major terrestrial biomes
A. 2
B. 4
C. 6
D. 8
8 The root nodules bacteria fix ______ in sil air:
A. Parasitism
B. Carbon dioxide 
C. Nitrogen
D. Hydrogen 
9 Ozone is present at about ________ km above earth
A. 5 -10
B. 10 - 20
C. 10 - 40
D. 10 - 50
10 The ecosystem present on land or soil is called
A. Terrestrial ecosystem
B. Lithospheric ecosystem
C. A and B
D. None

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