1st 9 weeks Biology Review

Front

Why are there so few top predators present in any ecosystem?

Back

Because there is not enough energy remaining in the ecosystem.

Front

List the trophic levels from lowest to highest.

Back

Primary producer, primary consumer, secondary consumer, tertiary consumer.

Front

What is the role of an enzyme in a chemical reaction?

Back

An enzyme speeds up a reaction by lowering the activation energy.

Front

Which of the following is NOT a producer?

Back

Grasshopper.

Front

What is the maximum number of organisms an ecosystem can hold called?

Back

Carrying capacity.

Front

Define 'trophic level'.

Back

A trophic level is a position in a food chain or food web, representing the flow of energy and nutrients.

Front

What is a primary producer?

Back

Primary producers are organisms that produce their own food through photosynthesis or chemosynthesis, such as plants and algae.

Front

What is a consumer in an ecosystem?

Back

Consumers are organisms that cannot produce their own food and rely on other organisms for energy.

Front

What is the difference between a primary consumer and a secondary consumer?

Back

Primary consumers eat primary producers, while secondary consumers eat primary consumers.

Front

What is biodiversity?

Back

Biodiversity refers to the variety of life in a particular habitat or ecosystem.