How Do Environmental Changes Affect Organism?

It refers to the gradual change of an organism in an ecosystem is called ___________.

• diversity

• succession

• extinction

It takes food and space away from native species.

• prey

• predator

• invasive specie

It happens when all members of a certain species die.

• diversity

• succession

• extinction

• mummification

A gradual buildup of organisms in an environment that consists of bare rock is called _____________.

• primary succession

• secondary succession

A gradual buildup of organisms in an environment that has soil is called _________.

• primary succession

• secondary succession

Some ecosystems depend on fire to stay healthy.

• True

• False

Volcanic eruptions can slowly change the environment.

• True

• False

It occurs when little rain falls and the land becomes so dry.

• a. brought

• b. sought

• c. drought

• d. bought

Living things always help the environment.

• True

• False

Predators, pest and diseases are _______________ factors that affect the growth of native species.

• helping

• continuing

• limiting