Biodiversity Answers

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1
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Which are examples of habitat destruction? Check all that apply.poachingdeforestationcaptive breedingwildfirespollution

A
poaching
B
deforestation
C
captive breeding
D
wildfires
E
pollution
2
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Which best compares habitat preservation and laws that protect biodiversity?

A
Habitat preservation usually protects only individual species, while laws protect entire ecosystems.
B
Laws usually protect only certain species, while habitat preservation protects entire ecosystems.
C
Only habitat preservation has been shown to actually help protect biodiversity.
D
Only laws have been shown to actually help protect biodiversity.
3

The chart shows information about four ecosystems. Ecosystem Data EcosystemAverage Year-Round Temperature (°F)Niche DiversitySize (square miles)W35medium140X74high100Y46high75Z87low60

A
W
B
X
C
Y
D
Z
5

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.
6

Which best explains why a decrease in the types of insects in an ecosystem reduces the sustainability of the ecosystem?

A
Organisms that depend on insects may not survive, eventually harming all the organisms that are interconnected.
B
The biodiversity of the ecosystem cannot be protected by laws unless there are a certain number of insect species.
C
There will likely be fewer insects that harm plants, causing an increase in plant diversity.
D
Having fewer insects allows other organisms to use the resources that the insects were using.
7

Which is a disadvantage of captive breeding?

A
rarely successful
B
harmful to many animals
C
usually results in overpopulation
D
often expensive
8

What is sustainability?

A
the number of organisms in an area
B
being able to continue for a long time
C
the variety of organisms in an area
D
being able to grow larger over time
9

Although it is against the law, people hunt and capture mountain gorillas in Africa. They sell the baby gorillas for large sums of money.

A
pollution
B
nonnative species
C
habitat destruction
D
poaching
10

captive breedingpoachinghabitat destructionpollution

A
captive breeding
B
poaching
C
habitat destruction
D
pollution

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