Ecology Test Review

What level of organization is this?

• Population

• Community

• Ecosystem

• Biosphere

Put the levels in order from biggest to smallest.

• Biosphere, Population, Ecosystem

• Biosphere, Ecosystem, Population

• Population, Ecosystem, Biosphere

• Ecosystem, Biosphere, Population

What do fungi do?

• Release oxygen into the atmosphere.

• Synthesize nutrients from inorganic substances.

• Recycle chemicals from dead organisms.

• Transfer energy to dying organisms.

Which species has the largest available energy?

• A

• B

• C

• D

Where does the energy go that is not being used by the organism?

• changed into inorganic compounds

• retained indefinitely by the herbivores

• recycled to the predators

• lost as heat to the environment

What is algae considered?

• autotroph

• heterotroph

A fire happens in a forest. What will happen next?

• Grasses start to grow.

• Small trees start to grow.

• Large trees start to grow.

What is the primary source of energy for life on earth?

• Moon

• Stars

• Sun

• Water

What does carrying capacity mean?

• max number of organisms in an ecosystem.

• smallest number of organisms in an ecosystem.

Pick the biotic factor.

• salt

• temperature

• water

• autotrophs