Ecology - Test Test

Question 1

Which would be the most accurate title for this picture?

Revolt · Accepted Answer

B: primary succession after a volcanic eruption

Question 2

Which explanation is best supported by the numbers in the chart?

Revolt · Accepted Answer

C: The dwindling zebra population has led to the decline of the predator lion and cheetah populations.

Question 3

White perch is a fish that is native to Atlantic coastal regions and is invasive to the Great Lakes. It feeds on native species and is thought to be the cause of the decline of the Great Lakes walleye fish populations. What was most likely its mode of introduction?

Revolt · Accepted Answer

B: produce brought from the eastern states; C: trapped in a ship's ballast or a water tank

Question 4

Which best describes how an organism’s niche is determined?

Revolt · Accepted Answer

A: An organism's habitat and inherited traits determine its niche.

Question 5

Freshwater can be renewed, but environmentalists consider it nonrenewable. Why is there a contradiction in classification?

Revolt · Accepted Answer

C: Freshwater is easily polluted or depleted before it can be replaced.

Question 6

The Serengeti plains are part of the African savanna ecosystem and are home to a variety of different species of plants and animals. The Serengeti plains experience a seven-month period of seasonal drought each year, during which the ecosystem receives only four inches of rain and the availability of some resources becomes very scarce. Which type of limiting factors does the seasonal drought in the Serengeti plains affect?

Revolt · Accepted Answer

B: density-independent factors

Question 7

Which statement best compares consumers and decomposers?

Revolt · Accepted Answer

D: Both get their energy by feeding on other organisms.

Question 8

The burrowing owl is found in dry, open areas such as grasslands, prairies, savannas, deserts, farmlands, golf courses, and urban areas throughout most of western United States and Florida, Central America, and most of South America. It makes its home in burrows of other animals and primarily eats insects and small rodents. As humans build more cities, nearby burrowing owl habitats change due to destruction of burrows and loss of prey. Which is the least likely outcome of the habitat changes that are described?

Revolt · Accepted Answer

C: The population of the burrowing owl may increase in its new surroundings.

Question 9

Wolves are predators of deer. What is most likely to happen to the deer population if the wolf population increased?

Revolt · Accepted Answer

B: decrease

Question 10

An ecosystem has experienced a flood. Which type of plants would you expect to see growing first after the flood?

Revolt · Accepted Answer

D: small annual plants

Ecology - Test Test Answers

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