MDCAT Biology Chapter 8 MCQ Test With Answer for (Evolution)

While preparing for the test, the students should allocate the proper time to all the topics. The candidates who intend to appear in the MDCAT must solve the chapter-wise MCQs provided on this platform. Through solving the MCQs, the students can better understand the topic and learn the topics for a longer time.

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

When bacteria break down nitrates and release nitrogen  back into atmosphere this process is called:

Question # 2

Which disease is due to nutritional deficiency

Question # 3

Biosphere is a thin layer of ______ in which all living organism exist

Question # 4

Fungi and bacteria are:

Question # 5

Plants growing in xeric condition are called

Question # 6

In which types of soil does water logging occur?

Question # 7

When succession starts on dry soil or rocks it is called:

Question # 8

The study of relationship of an organisms to their environment is known is

Question # 9

Biosphere is spread out over the surface of planet earth extending about ______ kilometers in the upper reaches of atmosphere and also in same distance into the depths of oceans

Question # 10

The study of the relationship of animals to environment is called:

Question # 11

The establishment of woody plants that inhibits the growth of most plants other than mosses in succession is known as

Question # 12

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

Question # 13

Consumers are ______ organisms

Question # 14

About ______% if the total energy from the sun is trapped by the producers in an ecosystem

Question # 15

The green photosynthetic plants, which capture and bring light energy into the ecosystem are:

Question # 16

Plants like cacti store their water in large:

Question # 17

Monoculture is

Question # 18

The living organism which can prepare their own food are:

Question # 19

An association between certain fungi and the roots of plants growing in acid soil is:

Question # 20

Eagle may eat blue bird, but blue bird eats insects like caterpillar and caterpillar feeds on grass or green leaves. This is a ______

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MCAT Biology Chapter 8 Important MCQ's

Sr.# Question Answer
1 Modern man has been on this planet for about
A. 4000 years
B. 400,000 year
C. 40,000 years
D. 50,000 years
2 Which oxides causes headache and brain damage
A. Nitrogen
B. Lead
C. CO2
D. CO
3 A group of interbreeding individual occurring in space and times is called:
A. Community
B. Population
C. Generation
D. Kingdom
4 The ecosystem consists of two basic interacting components:
A. Living and physical
B. Biotic and abiotic
C. Living and biotic
D. Both a & b
5 Xerophytes can withstand with extreme conditions due to the presence of
A. Large parenchyma cells in the leaf
B. Sunken stomata
C. Thick cuticle and palisade layer
D. All of these
6 Loins are
A. Primary consumers
B. Secondary consumers
C. Tertiary consumer
D. All of above
7 ______ components include all living organisms including plants and animals supported by biosphere
A. Biotic
B. Abiotic
C. Physical
D. Both a and b
8 Plants like cacti store their water in large:
A. Collenchyma tissues
B. Mesenchymal tissues
C. Parenchyma tissues
D. Epidermal tissues 
9 The succession started on deserts is termed as
A. Hydrosere
B. Xerosere
C. Derosere
D. None of the above
10 Nitrogen makes up ______ percent of the gases in atmosphere
A. 76
B. 77
C. 78
D. 98

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