Biodiversity 1

...... are the living things and non-living things coexist in an ecosystem.

Biodiversity keeps ecosystems ............ .

• healthy

• unhealthy

A ........ ......... shows how different living things eat each other.

...... are living things that make their own food.

• decomposers

• producers

• consumers

...... eat dead plants and animals.

• decomposers

• producers

• consumers

...... eat producers and other consumers.

• decomposers

• producers

• consumers

There are six levels of organisation:

....... study how organisms react to each other and their surroundings.

• Economy

• Ecology

• Biodiversity

• Sociology

There are ....... ecosystems in the biosphere.

Biodiversity ................ the balance between living and non-living things in an ecosystem.

• maintain

• doesn't maintain