Science - Unit 3 - Ecosystems

Plants transform energy when they make their own food.

Which type of energy is used by plants for making food?

• Electrical

• Heat

• Light

• Mechanical

What is the best definition for an ecosystem?

• A place where an animal lives.

• A place where organisms interact with each other.

• A place where the environment is perfect.

• A place where organisms interact with each other and their environment.

Match the terms with their definition:

• An organisms functional role.

• Niche

• All the organisms of one species in an ecosystem.

• Community

• All of the organisms in an ecosystems.

• Habitat

• Where an organism lives.

• Population

Select all of the known ecosystem niches?

• Producer

• Consumer

• Decomposer

• Director

• Digger

Plants do NOT usually need to eat other organisms because plants ​ (a)   .

• turn sunlight into food energy
• do not need food energy to live
• get all their food energy from the soil
• keep food energy stored in their roots

What might an organism do if there is a change to its ecosystem?

• Move

• Die

• Survive

• All of these

Match the following organisms with their role in the ecosystem.

• Decomposer

• Fox

• Producer

• Mushrooms

• Consumer

• Sage Brush

• Producer

• Grass

• Consumer

• Rabbit

TRUE or FALSE: The only thing plants do in an ecosystem is provide food.

• True

• False

An elk grazes on some grass in a field.

What is the role of the grass in this ecosystem?

• Producer

• Consumer

• Decomposer

A rabbit is eating some grass when a fox pounces on it an eats it for dinner.

What is the role of the fox in this ecosystem?

• Producer

• Consumer

• Decomposer