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 gross production of an ecosystem is its total

Question # 2

Sahara Desert i found in :

Question # 3

These micro-organisms use the proteins and amino acids and release excess of ammonia (NH3) or ammonium ions (NH4). This process is known as

Question # 4

An association between two organisms, which brings benefit to both the organisms is called:

Question # 5

Which of the following is an example of primary succession

Question # 6

Which rule depicts its correct statement regarding temperature variation?

Question # 7

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

Question # 8

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

Question # 9

Tundra ecosystem is a vast treeless region bordering the:

Question # 10

------------------- are the autotrophs that capture and bring light energy into ecosystem

Question # 11

Benefits brings about by both of the organisms is called

Question # 12

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

Question # 13

Due to the trampling of the soil layer by the hooves of grazing animals the rain water will:

Question # 14

Primary consumers form ______ trophic level

Question # 15

Over-grazing may lead to:

Question # 16

Layer of earth where life is present is called

Question # 17

Nutrient elements become the part of protoplasm during

Question # 18

Nitrogen makes up 78 percent of the gases in:

Question # 19

The establishment of stable vegetation on an area is termed as

Question # 20

The animals which feed on grasses are called:

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MCAT Biology Chapter 8 Important MCQ's

Sr.# Question Answer
1 Which one of the following is not the main ionic nutrient
A. Ca
B. Na
C. K
D. U
2 What are the environmental buffers?
A. Trees
B. Animals
C. Factories
D. Microbes
3 Nutrient elements become the part of protoplasm during
A. Photosynthesis
B. Decomposition
C. Fixation
D. Assimilation
4 Secondary consumes form ______ trophic level
A. First
B. Second
C. Third
D. None of above
5 Which one of the following is true
A. Population is a larger unit than a community
B. Bioshpere is a smaller unit than a biome
C. Biome and community are equal units
D. Biome is a larger unit than population
6 A ______of energy can be constructed showing energy transfer in a community of organisms
A. Pyramid
B. Triangle
C. Rectangular
D. None of above
7 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
8 The type of association between two organisms, which brings benefit to both the organisms is called
A. Commensalism
B. Predation
C. Mutualism
D. Parasitism
9 An ecosystem is made up of three main components:
A. The herbivores, carnivores and omnivores
B. The produces, the consumers and the decomposers
C. Primary, secondary and tertiary consumers
D. Producers, herbivores and carnivoers
10 The combination of many food chains is termed as
A. Food chain
B. Food web
C. Trophic level
D. None of above

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