Semester Exam Review 24

Front

What happens to the total mass during a chemical reaction?

Back

The mass remains constant.

Front

What characteristics describe the stars in the top left corner of the HR Diagram?

Back

Hot, bright.

Front

How do biodiversity and sustainability relate to each other?

Back

The higher the biodiversity, the greater the sustainability.

Front

What is formed during primary succession that is not formed during secondary succession?

Back

Soil.

Front

What causes tides?

Back

The interaction of Earth, the moon, and the sun.

Front

What is a precipitate in a chemical reaction?

Back

A solid that forms and settles out of a liquid mixture.

Front

Define biodiversity.

Back

The variety of life in the world or in a particular habitat or ecosystem.

Front

What is primary succession?

Back

The process of ecological change that occurs in an area where no soil exists.

Front

What is secondary succession?

Back

The process of ecological change that occurs in an area where soil is present but has been disturbed.

Front

What is the role of pioneer species in an ecosystem?

Back

They are the first organisms to colonize previously disrupted or damaged ecosystems.