Life Sciences Unit Test

Front

What is the source of energy in an animal's food?

Back

Energy in an animal's food was once energy from the sun.

Front

How do animals obtain nitrogen?

Back

Animals get nitrogen by eating plants or other animals that eat plants.

Front

What are the main things plants need to grow?

Back

Plants need sunlight, water, air, and soil to grow.

Front

What happens to a food web if a key species decreases?

Back

The entire food web would be affected.

Front

What does a food web illustrate?

Back

A food web shows different paths that energy follows as it moves through an environment.

Front

What is photosynthesis?

Back

Photosynthesis is the process by which plants use sunlight to convert carbon dioxide and water into glucose and oxygen.

Front

What role do decomposers play in an ecosystem?

Back

Decomposers break down dead organisms, returning nutrients to the soil.

Front

What is a producer in an ecosystem?

Back

A producer is an organism that can make its own food, typically through photosynthesis.

Front

What is a consumer in an ecosystem?

Back

A consumer is an organism that eats other organisms for energy.

Front

What is the difference between a food chain and a food web?

Back

A food chain shows a single path of energy flow, while a food web shows multiple interconnected paths.