Unit 7 Test Review Round #1

Where does the energy from an ecosystem come from?

• Trees
• Sun
• Plants
• Water

What is the difference between biotic and abiotic?

• Biotic are non-living things
• Abiotic are living organisms
• Biotic is life,
  Abiotic is non-living
• Biotic is non-living, Abiotic is living

 Which biome is more likely to survive a change in the environment?

• High (rich) biodiversity
• Low (poor) biodiversity

What does biodiversity mean?

• Only one species in an area.
• The different amount of species in an area
• All abiotic life
• Nitrogen fixation

High biodiversity makes the food web more complex and better able to support the most species, even if some populations decrease.

• True

• False

High biodiversity makes it more likely that the ecosystem will be able to keep functioning after a disturbance, such as disease or natural disaster.

• True

• False

High biodiversity makes an ecosystem more sustainable because the food web is stronger and organisms perform a wider variety of functions.

• True

• False

A stable and healthy ecosystem typically has high biodiversity.

• True

• False

The underside of a rotting log is an example of a:

• Taiga
• Microhabitat
• Savanna
• Biome

An example of an organism that might live in a microhabitat is...

• spider
• fox
• deer
• raccoon