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

Plant and animals replace the earlier ones in a way of

Question # 2

In 1917, Jpseph Grinnel an American ornithologist first proposed the term ______ in ecology

Question # 3

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

Question # 4

Bacterial live and get food from roots of plants is an example of

Question # 5

Which include seral stages of a primary succession are

Question # 6

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

Question # 7

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

Question # 8

The relationship in which only one organism benefit from the relationship. The other is not affected at all.

Question # 9

Producers are

Question # 10

Establishment of new forest at places where no forests existed previously is called

Question # 11

The major unit of ecology is:

Question # 12

______ is a change in the community structure of an ecosystem over a period of time

Question # 13

Which of the following is not true about biotic components

Question # 14

The correct sequence in a food chain is

Question # 15

Each biome consists of a combination of plants and animals in the fully developed

Question # 16

Which one of the following does not refer to mutialism

Question # 17

In an ecosystem after succession, a new invaders are called

Question # 18

Salt water ocean and sea are the largest ecosystem which cover __________ of earth surfaces.

Question # 19

Grasslands of tropic climate have woody trees and are called:

Question # 20

The abiotic components are also termed as

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MCAT Biology Chapter 8 Important MCQ's

Sr.# Question Answer
1 All living organisms supported by biosphere are called
A. Biotic components
B. Abiotic components
C. Autecology
D. Synecology
2 Shallow water zone of the lake near the shore is called:
A. Intertidal zone
B. Littoral zone
C. profundal zone
D. Limnetic zone
3 The bacteria in the root nodules fix ______ in soil air, converting it to amino acids
A. Nitrogen
B. Phosphorus
C. Sulphur
D. Iron
4 Consumers are ______ organisms
A. Autotrophic
B. Heterotrophic
C. Decomposers
D. None of above
5 The symbiotic relationship in which both the partners get benefit is:
A. Parasitism
B. Commensalism
C. Predation
D. Mutualism
6 When bacteria break down nitrates and release nitrogen  back into atmosphere this process is called:
A. Nitrification 
B. Denitrification 
C. Ammonification 
D. Deamination 
7 The animal that is caught and eaten is the
A. Predator
B. Prey
C. Consumer
D. Both a and c
8 Mascara is a type of:
A. Lion
B. Bird
C. Monkey
D. Bear
9 Which of the following is not an abiotic component
A. Atmosphere
B. Hydrosphere
C. Lithosphere
D. Producers
10 The second trophic level includes the:
A. Producers 
B. Tertiary consumers 
C. Secondary consumers 
D. Primary consumers 

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