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

Most nitrogen moves from the soil into the roots in the form of:

Question # 2

In limnetic zone the phytoplankton are:

Question # 3

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

Question # 4

We are reducing natural 'carbon dioxide's

Question # 5

Charles Eton defined the niche as the species:

Question # 6

The term ecology was first used by a ________ zoologist.

Question # 7

The type of association between two organisms, which brings benefit to both the organisms is called

Question # 8

Dominant species of mammals in grassland are the:

Question # 9

Air conditioners are the source of

Question # 10

Which one of the following does not refer to mutialism

Question # 11

The biotic components of the ecosystem are the

Question # 12

A group of interbreeding individual occurring in space and times is called:

Question # 13

When we study a single population relationship to its environment it will be called:

Question # 14

Consumers are the all the organisms, primarily animals. They obtain energy directly or indirectly from

Question # 15

In tandra forests the willow tree with an age of 50 year have diameter of trunk only:

Question # 16

Elements required in large amount are called

Question # 17

A little light is left to power photosynthesis at the depth of:

Question # 18

The major components of ecosystem are

Question # 19

______ are autotrophic organisms

Question # 20

The eating of grasses is termed as

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MCAT Biology Chapter 8 Important MCQ's

Sr.# Question Answer
1 The amount of energy left after plant have met their respiratory need is net primary production called as
A. Mass
B. Gross production
C. Biomass
D. None
2 Terrestrial ecosystem have main types of ecosystem:
A. Five
B. Four
C. Three
D. Two
3 Limnetic phytoplanktons include:
A. Mossses
B. Algea
C. Bacteria
D. Cyanobacteria
4 Dams and canal networks developed for irrigation purpose in Pakistan and many other countries create the problems of
A. Salinity and soil erosion
B. Salinity and water logging
C. Soil depletion and water erosion
D. Soil erosion and depletion
5 The tundra vegetation supports the animals called:
A. lemmings
B. Marchpolo sheeps
C. Goats
D. None of these
6 Fungi are
A. Producers
B. Consumers
C. Decomposers
D. None of the above
7 The principal stages of this cycle are
A. Ammonification
B. Nitrification
C. Assimilation
D. All of above
8 Which of these diseases is not infectious?
A. Measles
B. Influenza
C. Pneumonia
D. Tetany
9 Overgrazing resulted in
A. Diminishing the grasses
B. Desert
C. Barren land
D. All of these
10 The chief reservoir of nitrogen is the
A. Atmosphere
B. Water
C. Soil
D. Rain

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