Life Science Review

Front

What is the term for animals that are hunted for food by other animals?

Back

Prey

Front

What happens to an egg placed in pure water for 48 hours?

Back

The egg will gain water and swell.

Front

What percentage of energy typically transfers to the next trophic level in an energy pyramid?

Back

About 10%.

Front

Which organisms have the largest populations in an ecosystem?

Back

Plankton.

Front

What cell structure is believed to have developed from prokaryotes that could perform photosynthesis?

Back

Chloroplasts.

Front

What is the role of producers in an ecosystem?

Back

Producers, like plants, create energy through photosynthesis.

Front

Define a food chain.

Back

A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another.

Front

What is the primary function of mitochondria in a cell?

Back

Mitochondria are known as the powerhouse of the cell, generating energy through cellular respiration.

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 a trophic level?

Back

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