Page 3 - Basic Review

Question 1

Suppose artificial selection greatly increased the number of dark coloured butterflies. Which type of selection curve?

Answer 1

Directional

Question 2

Which type of selection occurred with the peppered moths in the Industrial Revolution?

Answer 2

Directional

Question 3

In the earliest staged of development, a tail, and gill slits can be seen in fish, birds, rabbits and mammals. This is ____

Answer 3

Embryological development

Question 4

In spite of its height, the giraffe has the same number of neck bones (7) as a giant whale and a tiny human. This is an example of a ______ ______.

Answer 4

Homologous structure.

Question 5

The forearms of a flightless bird:

Answer 5

Vestigial structure

Question 6

DNA and RNA comparisons may lead to evolutionary trees. These are _____ _____.

Answer 6

Genetic comparisons

Question 7

Bird and butterfly wings have the same function but different structures. This is an example of:

Answer 7

An analogous structure

Question 8

A body structure reduced in function but may have been used in an ancestor:

Answer 8

Vestigial organ

Question 9

What kind of animal is vulpes fulva? How do you know?

Answer 9

A species of fox, because it matches the genus and species of the red fox classification

Question 10

Difference between macroevolution and microevolution?

Answer 10

Macro: change in the look of an organism over time (phenotype)

Micro: change in the composition of the gene pool over time (allele combination)

Question 11

Define punctuated equilibrium

Answer 11

Speciation occurring relatively quickly, in rapid bursts, with long periods of genetic equilibrium in between