Biogeographic Isolation

Question 1

Which of the following could result in speciation from biogeographic isolation?

Revolt · Accepted Answer

the isolation of two populations of the same species

Question 2

Gentoo penguins present a potential mate with a pebble. Emperor penguins have a specific call and movement that they make to attract a mate. Which type of isolation do these penguins demonstrate?

Revolt · Accepted Answer

behavioral isolation

Question 3

Which of the following must occur for speciation to happen?

Revolt · Accepted Answer

reproductive isolation

Question 4

Darwin hypothesized that new species could appear gradually through small changes in an ancestral species. Which observation that he made about finches most supports that hypothesis?

Revolt · Accepted Answer

The finches all appeared to be related but differed from the mainland population.

Question 5

Which of the following is the best definition of biogeographic isolation?

Revolt · Accepted Answer

the separation of members of a species through geographical or biological forces

Question 6

Which is most likely to happen to a population that becomes anatomically isolated from the rest of its species?

Revolt · Accepted Answer

The population will become a separate species over time.

Question 7

A student argues that being separated geographically is the only way for speciation to occur. Why is he wrong?

Revolt · Accepted Answer

Speciation can occur from biological forces as well.

Question 8

Which lists the correct sequence of events for evolution to occur through isolation?

Revolt · Accepted Answer

founding population arrives, biogeographic isolation occurs, genetic changes occur, reproductive isolation results

Biogeographic Isolation Answers

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