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

Many cold=blooded animals remain inactive during winter season; it is called:

Question # 2

Predation decreases by decreasing the prey due to

Question # 3

In limnetic zone the phytoplankton are:

Question # 4

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

Question # 5

Parasitism is an association between a host and a parasite, which ivolves providing the parasite with:

Question # 6

The ecosystem present on land or soil is called

Question # 7

Animals are

Question # 8

A group of interbreeding individuals of same species occurring together in space and time is called:

Question # 9

The oxygen concentration in the air is maintained by the green plants which release it during

Question # 10

The living organism which can prepare their own food are:

Question # 11

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

Question # 12

Which of these diseases is not infectious?

Question # 13

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

Question # 14

Loins are

Question # 15

Joseph Grinnell an American scientist was:

Question # 16

Leech is preferably a

Question # 17

The nutrient cycles are also called as

Question # 18

The combination of many food chains is termed as

Question # 19

Ornithology is the sudy of

Question # 20

On poles, the average temperature is

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MCAT Chapter 8 Important MCQ's

Sr.# Question Answer
1 Aerosol spray foams are potential sources of
A. Carbon monoxide
B. Sulphur dioxide
C. Chlorofluorocarbons (CFCs)
D. Lead compounds
2 The succession started after destruction of an area is called as
A. Primary succession
B. Secondary succession
C. Tertiary succession
D. Quartnary succession
3 The nutrient cycles are also called:
A. Biochemical cycles
B. Geochemical cycles
C. Biogeochemical cycles
D. Elemental cycles
4 Soil nitrogen resources are also strengthened by the addition of ______ by the man himself
A. Nitrogen fertilizers
B. Nitrogen
C. Fertilizers
D. None of above
5 Biotic components includes all the
A. Nonliving components
B. Living components
C. Nonliving and living both
D. None of these
6 Nutrients required by organism in large amount like water, carbon, hydrogen, oxygen, nitrogen, phosphorus, sulphur and  calcium are:
A. Macronutrients
B. Micronutrients
C. Mega Nutrients
D. Both a & c
7 Global warming is the result of
A. Ozone layer depletion
B. Acid rain
C. Green house gases
D. All of them
8 Dormancy in animals through a drought or dry season is called:
A. Eurythermal
B. Diapause
C. Aestivation
D. None of these
9 The ecosystem consists of two basic interacting components:
A. Living and physical
B. Biotic and abiotic
C. Living and biotic
D. Both a & b
10 When bacteria break down nitrates and release nitrogen  back into atmosphere this process is called:
A. Nitrification 
B. Denitrification 
C. Ammonification 
D. Deamination 

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