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? Options: native plants, invaders, invasive species, natural species

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