Question 110 pts

All life on earth shares a common genetic history.

Group of answer choices

True

False

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Question 210 pts

__________ is the movement of gene sets in and out of apopulation due to death, immigration, emigration, etc. smoothingout the variations in characteristics over time.

Group of answer choices

Gene Flow

Protein Flow

Lipid Flow

Gene Growth

Gene Transfer

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Question 310 pts

By selecting for or against certain Genes (or traits), naturalforces shape evolution at the population level for a species.

Group of answer choices

True

False

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Question 410 pts

The Bottleneck Effect occurs when ___________.

Group of answer choices

large groups of individuals leave their home population andestablish new settlements, mating only among themselves

many members of a population die, resulting in a great loss ofgenetic diversity

small groups of individuals leave their home population andestablish new settlements, mating only among themselves

many members of a population reproduce causing too much geneticdiversity within the population

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Question 510 pts

Which one of the following would a Biologist describe asMicroevolution?

Group of answer choices

dramatic biological changes, such as the origin of wings on abird which leads to a new novel characteristic and true flight

a change in the gene pool of a population from one generation tothe next but no new species are formed

the extinction of species

the formation of new species

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Question 610 pts

____________ is the change in large characteristics of a groupof organisms leading to novel traits, new species, and unique newgroups of organisms.  

Group of answer choices

Microevolution

Macroevolution

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Question 710 pts

Blue-footed booby birds have blue, webbed feet and are comicallyclumsy when they walk on land. Evolutionary scientists view thesefeet as

Group of answer choices

a curiosity that has little to teach us regarding evolution.

an example of a trait that has not evolved.

an example of a trait that is poorly adapted.

the outcome of a trade-off: Webbed feet perform poorly on land,but are very helpful in diving for food.

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Question 810 pts

An elk herd is observed over many generations. Most of thefull-grown bull elk have antlers of nearly the same size, althougha few have antlers that are significantly larger or smaller thanthis average size. The average antler size remains constant overthe generations. Which of the following effects probably accountsfor this situation?

Group of answer choices

Diversifying Selection

Stabilizing Selection

Directional Selection

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Question 910 pts

The mode of Natural Selection in which one extreme phenotype isfittest and the environment selects against the others is called________.

Group of answer choices

Directional Selection

Diversifying Selection

Concert Ticket Selection at Ticketmaster

Stabilizing Selection

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Question 1010 pts

A female peacock choosing the most colorful male peacock wouldbe a good example of _______ Selection.

Group of answer choices

Homosexual

Intrasexual

Heterosexual

Bisexual

Intersexual