Match the following. Column A Column B 1. Snake a. Primary consumer 2. Grasshopper b. Decomposers 3. Symbiosis c. Eagle 4. Autotrophs d. Secondary carnivore 5. Scavengers e. Blue-green algae 6. Tertiary consumer f. Lichen

1-d Plants can be eaten by primary consumers such as grasshoppers, and they can be eaten by snakes. Here snake is a secondary consumer. 2-a Animals that eat plants are called primary consumers and are herbivores. 3-f In lichens, a fungus and an alga living in permanent symbiotic relations. In this relationship, algae being photosynthetic organism produce food and fungi protect algae. 4-e Blue-green algae are producers or autotrophs as they produce food for themselves and for all other members of the ecosystem. 5-b Decomposers can be called scavengers. Scavengers play an important role in the ecosystem by consuming dead animals and plant material. 6-c Eagles are secondary consumers since they are carnivorous. Column A Column B 1. Snake d. Secondary carnivore 2. Grasshopper a. Primary consume 3. Symbiosis f. Lichen 4. Autotrophs e. Blue-green algae 4. Scavengers b.Decomposers 6. Tertiary consumer c. Eagle

E M B I B E

SRIJAN ICSE BIOLOGY>Chapter 4 - Ecosystem>TEST Yourself>Q 11

EASY

8th ICSE

IMPORTANT

Earn 100

Draw a food web of the forest.

Important Questions on Ecosystem

EASY

8th ICSE

IMPORTANT

SRIJAN ICSE BIOLOGY>Chapter 4 - Ecosystem>TEST Yourself>Q 12

Discuss how plants are essential for animals.

EASY

8th ICSE

IMPORTANT

SRIJAN ICSE BIOLOGY>Chapter 4 - Ecosystem>TEST Yourself>Q 2

State whether the following statement is true or false. If false, rewrite the correct form of the statement.

Abiotic components include plants and animals.

EASY

8th ICSE

IMPORTANT

SRIJAN ICSE BIOLOGY>Chapter 4 - Ecosystem>TEST Yourself>Q 3

State whether the following statement is true or false. If false, rewrite the correct form of the statement.

The flow of energy in an ecosystem is in one direction only.

MEDIUM

8th ICSE

IMPORTANT

SRIJAN ICSE BIOLOGY>Chapter 4 - Ecosystem>TEST Yourself>Q 5

State whether the following statement is true or false. If false, rewrite the correct form of the statement.

Living beings depend on one another for their energy need.

MEDIUM

8th ICSE

IMPORTANT

SRIJAN ICSE BIOLOGY>Chapter 4 - Ecosystem>TEST Yourself>Q 6

State whether the following statement is true or false. If false, rewrite the correct form of the statement.

Organisms that feed on dead and decaying bodies are called scavengers.

MEDIUM

8th ICSE

IMPORTANT

SRIJAN ICSE BIOLOGY>Chapter 4 - Ecosystem>TEST Yourself

Match the following.

Column A	Column B
1. Snake	a. Primary consumer
2. Grasshopper	b. Decomposers
3. Symbiosis	c. Eagle
4. Autotrophs	d. Secondary carnivore
5. Scavengers	e. Blue-green algae
6. Tertiary consumer	f. Lichen