NWEA Science Practice Test 2

Front

What are the different levels of a food chain in an ecosystem?

Back

Producers, primary consumers, secondary consumers, and tertiary consumers.

Front

How do human activities impact the balance of an ecosystem?

Back

Human activities can impact the balance of an ecosystem in various ways such as habitat destruction, pollution, introduction of invasive species, and overexploitation of natural resources.

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.

Front

What is the role of photosynthesis in energy transfer?

Back

It converts light energy into chemical energy stored in glucose.

Front

What is the role of producers in an ecosystem?

Back

Producers convert sunlight into energy through photosynthesis.

Front

What is the role of consumers in an ecosystem?

Back

Consumers obtain energy by consuming producers or other consumers.

Front

What is the role of decomposers in an ecosystem?

Back

Decomposers break down dead organisms and waste to release energy back into the ecosystem.

Front

What do decomposers return to the soil?

Back

Nutrients for other organisms to use.

Front

What are primary consumers?

Back

Organisms that eat producers, such as herbivores.

Front

What are secondary consumers?

Back

Organisms that eat primary consumers, such as carnivores.