Ecosystems and Change

Animals that eat other animals are called

• prey

• predator

• symbiosis

A contest among organisms to find food, water, shelter and space they need to live is

• competition

• symbiosis

• predator

__________________ is the relationship between different kinds of organisms.

• competition

• prey

• symbiosis

Animals that are eaten by other animals are called

• symbiosis

• predator

• prey

Which organisms steal food from hosts or harm hosts in some other way?

• parasites

• populations

• predators

• prey

Which is an example of prey?

• hawk

• lion

• mouse

• wolf

Which statement is not true of an ecosystem?

• Organisms develop adaptations to survive.

• Symbiosis is the same as competition

• Populations often compete for the same food.

• Populations live together to form a community.

What type of symbiotic relationship is described? The clown fish cleans and lures prey to the sea anemone. The sea anemone protects the clownfish from predators.

• commensalism

• mutualism

• parasitism

Egrets, a type of bird, follow cattle. The cattle stir up insects in the grass for the egrets to eat. What type of symbiotic relationship is being described?

• commensalism

• mutualism

• parasitism

Fleas or ticks are living off the blood of the dog. What type of symbiotic relationship is being described?

• commensalism

• mutualism

• parasitism