Biodiversity Answers

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Which statements describe the relationship between the area and the biodiversity of an ecosystem? Check all that apply.Large ecosystems always have higher biodiversity than smaller ecosystems.A large area of a forest will likely have higher biodiversity than a smaller area of the same forest. A half acre of rainforest would likely have greater biodiversity than a full acre of desert.Small ecosystems always have low biodiversity.The same area of two different types of ecosystems will have the same biodiversity.

A
Large ecosystems always have higher biodiversity than smaller ecosystems.
B
A large area of a forest will likely have higher biodiversity than a smaller area of the same forest.
C
A half acre of rainforest would likely have greater biodiversity than a full acre of desert.
D
Small ecosystems always have low biodiversity.
E
The same area of two different types of ecosystems will have the same biodiversity.
2
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A scientist is studying the biodiversity of an ecosystem that has a cool climate. The scientist counts the number and types of organisms in a 5 foot by 5 foot area. She finds that the ecosystem has very low biodiversity. Another scientist studies the same ecosystem. He counts the number and types of organisms in a 1,000 foot by 1,000 foot area and finds that the ecosystem has high biodiversity.

A
The scientist who found high biodiversity observed fewer niches.
B
The scientist who found high biodiversity observed more plants than animals.
C
The scientist who found low biodiversity studied the ecosystem on cold days.
D
The scientist who found low biodiversity studied too small of an area.
3

a lawhabitat preservationa nonnative speciescaptive breeding

A
a law
B
habitat preservation
C
a nonnative species
D
captive breeding
7

In what ways have members of the gray whale species been affected by efforts to protect biodiversity? Check all that apply.They are currently endangered and almost extinct.Their numbers have increased because of the Endangered Species Act.Their numbers have increased mostly due to captive breeding.They are still being hunted, and their numbers are declining.They are an example of protecting biodiversity through the passage of laws.

A
They are currently endangered and almost extinct.
B
Their numbers have increased because of the Endangered Species Act.
C
Their numbers have increased mostly due to captive breeding.
D
They are still being hunted, and their numbers are declining.
E
They are an example of protecting biodiversity through the passage of laws.
8

Which is a disadvantage of captive breeding?

r
rarely successful
h
harmful to many animals
u
usually results in overpopulation
o
often expensive

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