Effects of Cycles on Ecosystems

Question 1

Fluctuations in the phosphorus cycle in aquatic ecosystems _______.

Revolt · Accepted Answer

can lead to changes in the growth rates of aquatic populations

Question 2

The desert relies on precipitation from weather patterns, while the rainforest can create its own precipitation.

Revolt · Accepted Answer

T

Question 3

How is carbon reintroduced into the atmosphere?

Revolt · Accepted Answer

respiration

Question 4

Populations are positively and negatively affected by a variety of biotic and abiotic factors, including the cycles of matter. Every autumn between September and November, Canadian geese will migrate from their breeding grounds in Canada to warmer Southern locations. However, in the spring between February and March, the geese will return to Canada. Photo by Peter McDermott Which abiotic factor would likely have the greatest effect on Canadian geese migration?

Revolt · Accepted Answer

fluctuations in seasons

Question 5

A large portion of precipitation in the rainforest occurs as a result of _______.

Revolt · Accepted Answer

transpiration

Question 6

Carbon is found only in living organisms.

Revolt · Accepted Answer

F

Question 7

Phosphorus is contained in _______.

Revolt · Accepted Answer

all of the above

Question 8

Cycles are essential to all living organisms.

Revolt · Accepted Answer

T

Question 9

Where do animals obtain carbon?

Revolt · Accepted Answer

plant and animal consumption

Question 10

The cycling of carbon throughout the environment is critical to ensuring the survival of all organisms. Suppose a mountain lion kills a deer in the forest. Photo by US Department of Agriculture What would likely happen first to the carbon in the deer carcass as it lies on the forest floor after the mountain lion has finished feeding on it?

Revolt · Accepted Answer

It would be incorporated into other organisms.

Effects of Cycles on Ecosystems Answers

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