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Producers, Consumers, and Decomposers

Total questions: 15

Worksheet time: 45mins

Name
Class
Date
1.

Give an example of a consumer.

a)

A rabbit

b)

A tree

c)

A rock

d)

A cloud

2.

Give an example of a decomposer.

a)

Mushroom

b)

Oak tree

c)

Sunflower

d)

Grass

3.

What is the role of decomposers in an ecosystem?

a)

Decomposers help break down dead matter, returning nutrients to the soil and supporting new plant growth.

b)

Decomposers primarily produce energy through photosynthesis.

c)

Decomposers compete with plants for sunlight and nutrients.

d)

Decomposers are responsible for pollinating flowers and plants.

4.

What do carnivores eat?

a)

Carnivores eat only plants.

b)

Carnivores are consumers that eat only other animals.

c)

Carnivores eat both plants and animals.

d)

Carnivores primarily eat fruits.

5.

What is a food chain?

a)

A sequence that shows how energy and nutrients flow from one organism to another in an ecosystem.

b)

A list of all the organisms in a habitat.

c)

A diagram that represents the physical structure of an ecosystem.

d)

A method of classifying different species based on their diet.

6.

What are consumers?

a)

Consumers are organisms that produce their own food.

b)

Consumers are living things that eat other living things for energy.

c)

Consumers are a type of plant that absorbs sunlight.

d)

Consumers are animals that only eat plants.

7.

What is a food web?

a)

A simple linear sequence of organisms that eat one another.

b)

A complex network of interconnected food chains in an ecosystem.

c)

A type of food chain that only includes plants.

d)

A diagram that shows the energy flow in a single species.

8.

What is the importance of producers in an ecosystem?

a)

They are the primary consumers that eat other organisms.

b)

They provide the energy needed for all other living things in the ecosystem.

c)

They decompose organic matter and recycle nutrients.

d)

They compete with other species for resources.

9.

Give an example of a producer.

a)

A tree

b)

A lion

c)

A mushroom

d)

A rabbit

10.

What is photosynthesis?

a)

Photosynthesis is the process by which plants use sunlight to make their own food.

b)

Photosynthesis is the process by which animals convert food into energy.

c)

Photosynthesis is the method by which plants absorb water from the soil.

d)

Photosynthesis is the way in which plants reproduce sexually.

11.

What do herbivores eat?

a)

Only plants

b)

Only meat

c)

Both plants and meat

d)

Fungi and bacteria

12.

What are producers?

a)

Living things that make their own food through photosynthesis.

b)

Animals that consume other organisms for energy.

c)

Decomposers that break down dead matter.

d)

Fungi that absorb nutrients from their surroundings.

13.

What are decomposers?

a)

Organisms that produce energy through photosynthesis

b)

Organisms that break down dead organisms and recycle nutrients back into the soil

c)

Organisms that consume living plants and animals

d)

Organisms that create new life forms from inorganic materials

14.

What do omnivores eat?

a)

Only plants

b)

Only animals

c)

Both plants and animals

d)

Neither plants nor animals

15.

What happens to energy as it moves up the food chain?

a)

It increases, providing more energy for each successive consumer.

b)

It remains constant, with the same amount of energy available at each level.

c)

It decreases, meaning less energy is available for each successive consumer.

d)

It fluctuates randomly, with no specific trend.