Biology 10 Chapter 16 MCQs Test 2

In Biology 10 Chapter 16 MCQs Test 2, there are 15 MCQs. A total of 5 MCQs Tests are available from Chapter 16 of FBISE Class 10 Biology Book. We have prepared 75 multiple-choice questions, which are divided into five MCQs Tests.

Practice
MCQs Test No 2

8

Class 10 Biology
Chapter 16
Practice MCQs Test No 2

1 / 15

The materials flow from one trophic level to the next by means of:

Both a and b

None

Food web

food chains

2 / 15

________ get solar energy and transform it into chemical energy by the process of photosynthesis

Predators

Decomposers

Consumers

Producers

3 / 15

__________ atom is the principal building block of many kinds of biomolecules.

Oxygen

Nitrogen

Carbon

Hydrogen

4 / 15

The base of food chain is always formed by:

Heterotrophs

Producers

Decomposers

Consumers

5 / 15

A relationship between species in which both species benefit is called:

Symbiosis

Parasitism

Commensalism

Mutualism

6 / 15

In 1927, ______________ developed the concept of ecological pyramids.

Kelvin

Lamarck

Charles Elton

Charles Darwin

7 / 15

A network of all the feeding relationships In an ecosystem is called:

Energy glow

Food web

Trophic level

Food chain

8 / 15

The thickness of biosphere is:

200 km

50 km

20 km

02 km

9 / 15

The conversion of ammonia to nitrates is carried out by soil bacteria. This process is called:

Nitrification

Denitrification

Nitrogen fixation

Assimilation

10 / 15

The self-sufficient unit of an environment that is formed as a result of Interaction between ifs biotic community and its abiotic components is known as:

Biosphere

Ecosystem

Food web

Habitat

11 / 15

Water, soil, air, temperature, wind and sunlight are examples of:

Environment

Abiotic factors

Biotic factors

Biomass

12 / 15

Organism that make their own food with help of sunlight, \({ CO }_{ 2 }\) and \({ H }_{ 2 }O\) are called;

Predators

Producers

Consumers

Decomposers

13 / 15

A group of organisms, similar to one another, which can Interbreed in nature and produce fertile offspring:

Population

Genus

Family

Species

14 / 15

A relationship between two organisms in which individual of one species may kill and eat individuals of other species is called:

Competition

Predation

Mutualism

Symbiosis

15 / 15

The type of symbiotic relationship in which one member get benefit and other is harmed is called:

Parasitism

Mutualism

Predation

Commensalism

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