Understanding Communities and Key Terms

What is the primary reason organisms in a community are considered interdependent?

• They rely on each other for food and nutrients.

• They share the same habitat.

• They migrate together.

• They are all part of the same species.

How might the extinction of grasshoppers affect the ecosystem described?

• Decrease in beetle population

• Increase in frog population

• Increase in shrew population

• Decrease in owl population

What does the term 'competition' refer to in an ecosystem?

• Organisms migrating together

• Organisms sharing food

• Organisms competing for limited resources

• Organisms fighting for territory

Which of the following is an example of predation?

• A frog living in a pond

• A bee pollinating a flower

• A snake basking in the sun

• An owl eating a shrew

What is a habitat?

• The food an organism eats

• The place where an organism normally lives

• The relationships between organisms

• The number of organisms in an area

What is parasitism?

• A relationship where neither organism benefits

• A relationship where both organisms benefit

• A relationship where one organism benefits and the other is harmed

• A relationship where both organisms are harmed

In mutualism, how do both organisms benefit?

• They compete for the same food

• They share the same habitat

• They both gain resources or services from each other

• They migrate together