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Level 1 Quiz
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1

The bottom type is an abiotic part of the environment.
A)True
B)False
2

Physiological adaptations can be passed from an individual to its offspring.
A)True
B)False
3

Species that exhibit resource partitioning are likely to be specialists rather than generalists.
A)True
B)False
4

A species' niche is defined as
A)the specific abiotic habitat features to which it is adapted.
B)the exact location where it lives.
C)its special role in a community.
D)its specific behavior.
5

Cleaning associations benefit the cleaner species, which get a steady supply of food, and may benefit the cleaned host by removal of irritating parasites.
A)True
B)False
6

If the primary producers in a particular habitat contain 1 million calories of energy, about 10,000 calories would be expected to make it to the secondary consumers.
A)True
B)False
7

Nutrients are regenerated from detritus and DOM in the oceans by bacteria and fungi.
A)True
B)False
8

Because standing stock and primary productivity are not the same, there can be more herbivores than primary producers.
A)True
B)False
9

Nitrogen and carbon are often limiting factors because each forms a relatively inert gas that few organisms can extract from the atmosphere.
A)True
B)False
10

Most primary producers in the oceans obtain their nitrogen from recycled nitrogen compounds rather than from nitrogen gas.
A)True
B)False
11

Most of the phosphorus entering the ocean is brought in by rivers.
A)True
B)False
12

Life on the floor of the continental shelf below the low tide level is called neritic.
A)True
B)False
13

The mesopelagic is the open-ocean zone that has enough sunlight for some vision but not enough for photosynthesis.
A)True
B)False
14

Maintenance of biodiversity is of importance to humans because ecosystem efficiency may decline as species are lost.
A)True
B)False
15

Which of the following is a potential problem in achieving a significant reduction in the rate of the loss of biodiversity?
A)Conferences have not been held to discuss this issue.
B)There is no evidence that diverse communities are more efficient at using resources than those that are less diverse.
C)Scientists cannot actually measure how fast biodiversity is disappearing.
D)Scientists have already identified most organisms and evaluated their use to humans.
16

The relationship in which two co-habiting or cooperating organisms benefit each other is called
A)symbiosis.
B)coevolution.
C)commensalism.
D)mutualism.
17

Primary productivity can be determined by
A)measuring the fluorescence that chlorophyll emits.
B)keeping primary producers in the dark and measuring carbon dioxide production.
C)measuring nutrients in the water.
D)measuring DOM.





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