Site MapHelpFeedbackMultiple Choice Quiz
Multiple Choice Quiz
(See related pages)



1

Ecology refers to the science of defending the environment from human effects.
A)T
B)F
2

Natural populations of species rarely grow unchecked because of limiting factors such as depleted resources, diseases, and predation.
A)T
B)F
3

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

A species' niche is defined as the specific abiotic habitat features it is adapted to.
A)T
B)F
5

Cleaning associations benefit the cleaner species, which get a steady supply of food, and may benefit the cleaned host by removal of painful parasites.
A)T
B)F
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)T
B)F
7

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

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

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

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

Dinoflagellates and copepods are classified as nektonic organisms since they can swim.
A)T
B)F
12

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

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

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

The process in which an organism uses a limiting resource at the expense of another organism is called
A)resource partitioning.
B)parasitism.
C)competition.
D)exclusion.
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 in the oceans is commonly determined by measuring
A)the amount of radioactive carbon dioxide used up in a clear bottle of seawater in sunlight in comparison to that in a dark bottle.
B)the amount of chlorophyll in the water by fluorescence or satellite cameras.
C)the amount of oxygen used up in a clear bottle of seawater in sunlight in comparison to that in a dark bottle.
D)both a and b.
E)both b and c.





To learn more about the book this website supports, please visit its Information Center.
(c)2003 McGraw-Hill Higher Education
Any use is subject to the Terms of Use and Privacy Policy.
McGraw-Hill Higher Education is one of the many fine businesses of The McGraw-Hill Companies.


Castro Marine BiologyOnline Learning Center

Home > Chapter 10 > Multiple Choice Quiz