Unit 4 Review

Front

A living thing that makes its own food using sunlight is called what?

Back

Producer (or Autotroph)

Front

What is the main source of energy for most food chains?

Back

The Sun

Front

What is the difference between a consumer and a decomposer?

Back

A consumer eats other organisms for energy, while a decomposer breaks down dead organisms and recycles nutrients back into the ecosystem.

Front

What would happen to an ecosystem if decomposers disappeared?

Back

Dead plants and animals would accumulate, and nutrients would not be recycled back into the ecosystem.

Front

Explain 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 food chains in an ecosystem.

Front

What gas do plants take in during photosynthesis?

Back

Carbon dioxide (CO2)

Front

What are the three reactants of photosynthesis?

Back

Carbon dioxide, water, and sunlight

Front

The two products of photosynthesis are:

Back

Oxygen and glucose

Front

Fill in the blank: ☀️ + CO2 + H2O → Glucose + _____

Back

Oxygen

Front

Why is photosynthesis important for both plants and animals?

Back

produces oxygen and food needed by living organisms.