Unit 7 Review

Which of the following conclusions about why there are different organisms in each

microhabitat is supported by the data?

• There is more space in the grassy area than in the rotting log.

• The rotting log habitat is away from the road allowing it to support different

  organisms.

• Each microhabitat supports a different set of basic needs for the organisms found

  there.

• The microhabitats are in the same schoolyard.

The adaptation

is expected in a habitat with which of the following climatic condition are hot and dry in the roots of plants?

• Shallow roots near the surface of the ground

• deep roots, which extend into the ground, are able to reach cooler

  regions and absorb water that the roots

• short roots near the surface of the ground

• none of the above

If no human disturbance or natural disaster occurs, what will happen in 100 years?

• desert

• pond

• forest

• field

Primary succession occurs in a previously uninhabited area with little to no soil.

Secondary succession occurs after an environmental disturbance that reduced an

established ecosystem.

• True

• False

Primary succession occurs in an ecosystem affected by human activity such as

deforestation. Secondary succession occurs after a forest fire destroys an

established ecosystem.

• True

• False

Primary succession occurs after a forest fire destroys an established ecosystem.

Secondary succession occurs in an ecosystem affected by human activity such as

deforestation.

• True

• False

Primary succession occurs after an environmental disturbance that reduced an

established ecosystem. Secondary succession occurs in a previously uninhabited

area with little to no soil.

• True

• False

Which examples

below represent a pioneer species?

• Human, trees

• Lichen , mosses

• Spiders, oak trees

• lichen , human

An owl uses a hole in a tree as a nest. Is an example of

• biotic and abiotic

• 2 biotic

• 2 abiotic

• abiotic and biotic

A black bear uses a cave for a winter home. Is an example of??

• Biotic and abiotic

• 2 biotic

• 2 abiotic

• abiotic and biotic