Food Chains, Food Webs, Energy Flows, and Trophic Levels

Q. Which of the following is/are the part of the first trophic level?

1. Producers
2. Herbivores
3. Carnivores
4. Decomposers

Q.

Identify the type of consumer: The frog feeding on an insect.

Q.

In every food chain, green plants are-

1. Decomposer

2. Producers

3. Consumer

4. None of the above

Q.

Secondary consumers in a food chain are always carnivores.

1. True
2. False

Q. What is a food chain?

1. Sequence of transfer of matter and energy in the form of food from one organism to another.
2. Sequence of transfer of energy in the form of food from one organism to another.
3. Transfer of matter and energy in the form of food from one organism to another.
4. Sequence of transfer of matter and energy in the form of food from one organism to environment.

Q. What is a food web?

1. A group of organisms interlinked and interdependent
2. A group of food chains interlinked and interdependent
3. A group of living organisms interlinked and independent
4. Transfer of energy from environment to organisms

Q. Match the following to the terms of a food chain.

1. Secondary consumer
2. Tertiary consumer
3. Primary consumer
4. Decomposer

Q. Match the below given organisms with their respective trophic levels in this food chain.

a) Orca	1) 1st trophic level
b) Pacific cod	2) 2nd trophic level
c) Sea lion	3) 3rd trophic level
d) Shrimp	4) 4th trophic level

1. a - 1, b - 2, c - 3, d - 4
2. a - 2, b - 3, c - 4, d - 1
3. a - 1, b - 2, c - 3, d - 4
4. a - 4, b - 1, c - 3, d - 2

Q.

The second trophic level is always of

1. (a) Herbivores

2. (b) Autotrophs

3. (c) Carnivores

4. (d) Producers

Q. Identify the correct option affter reading the following information thereof.

It is the foundation of the aquatic food web. Many marine creatures feed on it. It is the source of food directly or indirectly for all marine creatures. It also plays an important role in reducing greenhouse emissions through carbon sequestration.

1. Crustacean
2. Zooplankton
3. Shrimp
4. Phytoplankton

Q. Identify the correct option affter reading the following information thereof.

It is the foundation of the aquatic food web. Many marine creatures feed on it. It is the source of food directly or indirectly for all marine creatures. It also plays an important role in reducing greenhouse emissions through carbon sequestration.

1. Crustacean
2. Shrimp
3. Phytoplankton
4. Zooplankton

Q. The interconnection of food chain leads to the food and interrelationship of organisms and this complex situation is thus known as..........

Q. Give the name for a network formed by interlinking of a number of food chains

Q. Match the following to the terms of a food chain.

1. Secondary consumer
2. Tertiary consumer
3. Primary consumer
4. Decomposer

Q. The sequence of transfer of matter and energy in the form of food from one organism to the other is called a food web.

1. True
2. False

Q. Which of the following is/are the part of the first trophic level?

1. Producers
2. Herbivores
3. Carnivores
4. Decomposers

Q. The sequence of transfer of matter and energy in the form of food from one organism to the other is called a food web.

1. True
2. False