Bio Unit 3/lecture 26

Front 1

Which of the following is correct?

Back 1

allopatric populations look the same and use the same resources

Front 2

Which hypothesis states that new species are prevented from entering a community by the existing species?

Back 2

inhibition hypothesis

Front 3

Which statement is true about the effect of stress on a population?

Back 3

plants compete more in an ideal environment

Front 4

Which of the following pairs is NOT a mutualism?

Back 4

ant - yucca plant

Front 5

What conclusion can be drawn from Gause's experiments on interspecific competition in Paramecium?

Back 5

when two populations of Paramecium use the same limiting resource, they cannot coexist long term

Front 6

Succession results from all the following EXCEPT

Back 6

stasis

Front 7

What is/are the factor(s) involved in the optimal foraging theory?

Back 7

energy needed to capture food and energy that the food provides

Front 8

An example of an obligatory mutualism involves which two organisms?

Back 8

acacia trees and ant colonies

Front 9

The Monarch butterfly has an undesirable taste and the Viceroy butterfly has a selective advantage because is looks like the Monarch. This is an example of which process?

Back 9

Batesian mimicry

Front 10

A milkweed plant discourages consumption by herbivores by

Back 10

excuding a toxic sap

Front 11

An example of commensalism involves which two organisms?

Back 11

cattle egrets and cattle

Front 12

In a study examining the growth of coral in a portion of the Great Barrier Reef, which conclusion concerning alterations in the coral colonies is the most accurate?

Back 12

changes in the colony are due to both external and internal factors

Front 13

The intermediate disturbance hypothesis posits which of the following?

Back 13

species richness is greatest in communities that experience frequent moderate disturbances

Front 14

In the experiment involving bluegill sunfish and their choice of diet, when equal numbers of small, medium, and large Daphnia are present,

Back 14

the sunfish prefer large Daphnia

Front 15

How can predators influence the species richness and structure of communities?

Back 15

reducing the population sizes of their prey

Front 16

Colonization rates from one habitat patch to another are _____ and extinction rates within habitat patches are _______ in contiguous habitats than on islands.

Back 16

higher; lower

Front 17

What conclusion can be drawn regarding a community in which many species are involved in a food web?

Back 17

It is more stable since organisms have more than a single food source

Front 18

A panda bear who consumes a diet primarily of eucalyptus leaves would be considered a

Back 18

specialist and a herbivore

Front 19

An example from the text contrasts two forests, each with 10 species and a total of 50 trees. The first forest has 39 of the 50 trees representing the dominant species. The second forest has 2 of each of the 10 different species. What conclusion can be drawn regarding these two forests?

Back 19

The second forest is more diverse than the second

Front 20

The relationship between species richness and recovery from natural disturbances can best be summarized as follows:

Back 20

communities with more diversity recover more rapidly from natural disturbances

Front 21

Which statement best summarizes the connection between islands and species richness?

Back 21

the factors influencing species richness on an island are distance from the mainland and island size

Front 22

Which of the following is NOT a bias that could be encountered when investigating the role of competition in a community?

Back 22

the assumption that evolution never occurs

Front 23

High species richness in the tropics is probably a result of all of the following EXCEPT

Back 23

seasonality