Changes to Ecosystems

Front

Which of the following would have a negative impact on an ecosystem: constructing highways, planting trees, recycling paper?

Back

constructing highways

Front

A habitat is the place where an animal lives. Which animal's habitat is probably not in the desert? Options: an insect, lizard, desert rat, bear

Back

bear

Front

How does a bird "change its environment" to meet its NEEDS?

Back

builds a nest

Front

A squirrel makes a change to its environment when it —

Back

digs a hole to bury an acorn

Front

What do scientists call organisms that are not native to an ecosystem and cause harm to native organisms?

Back

invasive species

Front

Which of the following activities has a positive effect on the environment? recycling, deforestation, pollution

Back

recycling

Front

When a certain population becomes so dense that it harms or changes the quality of life in that environment, we have...

Back

overpopulation

Front

______________ is a stable, balanced, or unchanging system.

Back

equilibrium

Front

A ______________ is the place where an organism lives.

Back

habitat

Front

A ______________ is the place where an organism lives.

Back

habitat