Understanding Ecosystems and Habitats

What is an ecosystem?

• Only the living things in an area

• All the biotic (living) and abiotic (non-living) things in an area

• Only the non-living things in an area

• Only the plants in an area

What does the term "biotic" refer to?

• Non-living factors

• Living factors

• Water and soil

• Sunlight

What does the term "abiotic" refer to?

• Living factors

• Non-living factors

• Plants and animals

• Populations

What is a habitat?

• The group of all species in an area

• The physical environment in which a species lives that provides the things the organism needs

• The non-living part of an ecosystem

• The food chain

What is a population in an ecosystem?

• All the non-living things in an area

• All the members of the same species in an ecosystem

• All the plants in an area

• All the different species in an area

What is a community in an ecosystem?

• All the abiotic factors in an area

• All the populations in an ecosystem

• All the plants in an ecosystem

• All the animals in an ecosystem

What does it mean when species are "competitive"?

• When one species eats another

• When more than one species requires the same resources

• When two species help each other

• When species live in different habitats

What does "dependent" mean in the context of species relationships?

• When one species needs another species to survive

• When species compete for resources

• When species live in different areas

• When species are unrelated

What is a symbiotic relationship?

• When two species require each other in order to survive

• When one species eats another

• When species compete for food

• When species live alone

Which of the following is an example of a biotic factor?

• Sunlight

• Water

• Plants

• Soil