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

Overgrazing

Question # 2

Primary succession that starts on a dry soil or rock is called:

Question # 3

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

Question # 4

Two main types of environment factors are:

Question # 5

The average rainfall in desert ecosystem is:

Question # 6

An ecosystem is made up of three main components:

Question # 7

Oxides of nitrogen are produced by burning of

Question # 8

The term ecology comes from the Greek words Oikos, meaning "the family household" and logy (logos) meaning:

Question # 9

The organisms of same species live in a same place is called

Question # 10

The lake ecosystem can be divided into ______ number of zones:

Question # 11

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

Question # 12

Excessive ploughing of lands in arid regions results in the development of

Question # 13

Plants like cacti store their water in large:

Question # 14

The process by which the limited amount of nitrogen is circulated and recirculated throughout the world of living organisms is known as the

Question # 15

In which types of soil does water logging occur?

Question # 16

The term niche in ecolgy was first proposed by:

Question # 17

The chemical elements essential for life in living organisms are called:

Question # 18

Lichen is the example of

Question # 19

It is community relay

Question # 20

When bacteria in soil oxidize ammonia or ammonium ions this is called:

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MCAT Biology Chapter 8 Important MCQ's

Sr.# Question Answer
1 A process in which green plants are eaten by animals is called
A. Grazing
B. Predation
C. Commensalization
D. None of these
2 Biosphere is a thin layer of ______ in which all living organism exist
A. Earth
B. Air
C. Space
D. None of above
3 Consumers are the all the organisms, primarily animals. They obtain energy directly or indirectly from
A. Producers
B. Consumers
C. Decomposers
D. All of the above
4 ------------------- are the autotrophs that capture and bring light energy into ecosystem
A. Decomposers
B. Algae
C. Producers
D. None o these
5 ______ lichens are the examples of foliose lichens
A. Dermatocarpon
B. Permellia
C. Both a and b
D. None of above
6 How plants are deprived of nutrients by acid rain
A. Due to teaching
B. Due to fall in pH
C. Acid creates a barrier to absorption
D. Unknown cause
7 Insect and flower relationship is the example of
A. Mutualism
B. Commensalism
C. Parasitism
D. All of above
8 When we study a single population relationship to its environment it will be called:
A. Mycology
B. Synecology
C. Autecology
D. Ornithology
9 Any ecosystem is made up of three components like:
A. Producers, consumers, and predators
B. Producers, consumers and grazers
C. Producers, consumers and decomposers
D. Producers, grazers and composers
10 One mechanism of temperature regulation was developed by land plans and animals by developing.
A. Brak and skin
B. Vascular tissues and circulatory system
C. Cambium and excretory system
D. Vascular tissue and respiratory system

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