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Ecosystem Interactions and Energy Flow

Total questions: 10

Worksheet time: 10mins

Name
Class
Date
1.

What is the primary role of a predator in a predator-prey relationship?

a)

To provide food for prey

b)

To hunt and consume prey

c)

To decompose dead organisms

d)

To produce energy through photosynthesis

2.

Which of the following is an example of mutualism?

a)

A lion hunting a zebra

b)

A bee pollinating a flower

c)

A tapeworm in a human intestine

d)

A bird eating insects off a buffalo

3.

In an ecosystem, which of the following best describes the flow of energy?

a)

Energy flows from consumers to producers

b)

Energy flows from decomposers to producers

c)

Energy flows from producers to consumers

d)

Energy flows from consumers to decomposers

4.

Which of Earth's spheres includes all the water on the planet?

a)

Atmosphere

b)

Lithosphere

c)

Hydrosphere

d)

Biosphere

5.

Explain how a decrease in the prey population can affect the predator population in a predator-prey relationship.

a)

The predator population will increase

b)

The predator population will decrease

c)

The predator population will remain the same

d)

The predator population will become extinct

6.

Describe the relationship between a clownfish and a sea anemone.

a)

Parasitism

b)

Commensalism

c)

Mutualism

d)

Predation

7.

How does energy transfer from one trophic level to the next in an ecosystem?

a)

Through the consumption of organisms at a lower trophic level

b)

Through the absorption of sunlight

c)

Through the decomposition of dead organisms

d)

Through the release of heat

8.

How do the biosphere and atmosphere interact in the carbon cycle?

a)

Plants in the biosphere absorb carbon dioxide from the atmosphere during photosynthesis

b)

Animals in the biosphere release oxygen into the atmosphere during respiration

c)

The atmosphere provides nutrients to the biosphere

d)

The biosphere and atmosphere do not interact

9.

Identify the type of symbiotic relationship where one organism benefits and the other is neither helped nor harmed.

a)

Mutualism

b)

Parasitism

c)

Commensalism

d)

Predation

10.

Which of the following best describes the interaction between the lithosphere and the hydrosphere?

a)

The lithosphere provides nutrients to the hydrosphere

b)

The hydrosphere erodes rocks in the lithosphere

c)

The lithosphere absorbs sunlight for the hydrosphere

d)

The hydrosphere produces oxygen for the lithosphere