Answers5120VA Environmental Science Sem ACareers in Environmental Science

Topic Test Answers

15 verified answers
21
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How can an increase in biodiversity lead to an increase in ecosystem stability?

A
A more biodiverse ecosystem is not subject to change.
B
A more biodiverse ecosystem has a higher chance of adapting to species changes.
C
A more biodiverse ecosystem has fewer species types to balance.
D
A more biodiverse ecosystem is subject to fewer natural disasters.
22
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If a stationary body of water has a constant temperature from top to bottom it is most likely a(n) _______.

A
lake
B
pond
C
ocean
D
lagoon
23

Variation of ecological habitats within a species is characteristic of which type of diversity?

A
Genetic diversity
B
Ecosystem diversity
C
Species diversity
D
Regional diversity
24

Polar bears’ hair _______.

A
is transparent
B
is hollow
C
keeps them from getting wet
D
all of the above
25

What is the difference between a lake and a pond?

A
A pond is smaller in size and does not have a temperature gradient.
B
A pond is smaller in size and has a temperature gradient.
C
A pond is larger in size and does not have a temperature gradient.
D
A pond is larger in size and has a temperature gradient.
26

The Pompeii worm was discovered near _______.

A
a hydrothermal vent
B
a sea mount
C
Hawaii
D
the great barrier reef
27

Summarize why the pyramid of energy can never be inverted like the pyramids of numbers and biomass can.

Answer not available
28

Explain the relationship between light intensity and the daily rhythm of flowers opening.

Answer not available
29

The amount of energy lost at the transition between each trophic level of the pyramid of energy is about _______.

A
10%
B
50%
C
70%
D
90%

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