What Are Ecosystems?

Most of Earth is made up of which type of ecosystem?

• desert

• freshwater

• grassland

• saltwater

How is this frog interacting with a part of its ecosystem?

• It is resting on a lily pad.

• It is part of a frog community.

• It is looking for an insect to eat.

• It is about to jump into the water.

What things are part of a population of elk?

• trees in the forest

• all the elk in the same area

• flies and other small insects

• nonliving things used by the elk

Which type of forest gets the most rainfall?

• deciduous forest

• tropical rain forest

• coastal forest

• coniferous

What are three things that make up an ocean ecosystem?

• sand, coral, fish

• mice, grass, salt water

• fresh water, kelp, sharks

• salt water, whales, trees

Everything that surrounds a living thing is its

• environment

• habitat

• population

• community

All the living and nonliving thing in a place is a/an

• community

• ecosystem

• environment

• habitat

The space where a plant or animal lives is its

• population

• environmant

• habitat

• ecosystem

All of one kind of organism living in the same are is

• environment

• ecosystem

• habitat

• population

All of the populations that live and interact an area is

• community

• population

• ecosystm

• habitat