Exam 2

Question 1

Slow evolution of a new taxonomic group is called

Answer 1

Gradualism

Question 2

A measure of the selective advantage of a trait is called

Answer 2

Fitness

Question 3

A non-random type of microevolution is called

Answer 3

Natural selection

Question 4

Intergradation is between memebers of ______ species

Answer 4

Same

Question 5

_______ is the development of a new speices without splitting off of an ancestor

Answer 5

Anagenesis

Question 6

_______ is the movement of an individual into a new area not preivously inhabited

Answer 6

Disperal

Question 7

The biological species concept is based on _______ isolation

Answer 7

Reproductive

Question 8

Dispersion refers to the active _________ movement within an organism’s home range

Answer 8

Geographical

Question 9

A morphological species is based on _______ phenotypic similarity.

Answer 9

Overall

Question 10

Darwin’s most accepted theory of organic evolution is ________

Answer 10

Natural selection

Question 11

Microevolution usually causes speciation

Answer 11

False

Question 12

Human skin color is an example of a geogrpahical gradual cline.

Answer 12

True

Question 13

Plesiomorphic traits cannnot be used to recognize phylogenetic sister species.

Answer 13

True

Question 14

Missing links are transitional fossils between two forms.

Answer 14

True

Question 15

Saltation is gradual evolutionary changes.

Answer 15

False

Question 16

Parthenogenesis is a form of unisexual reproduction.

Answer 16

True

Question 17

A species can be defined by various conditions that sohw gene pool separation.

Answer 17

True

Question 18

Hybridization is between populations of two species.

Answer 18

True

Question 19

Interspecific genetic variation is within a population of the same species.

Answer 19

False

Question 20

Evolution causes similarities, not differences.

Answer 20

False

Question 21

Allopatric

Answer 21

Populations are geographically isolated by a barrier.

Question 22

Sympatric

Answer 22

Populations overlap in their geographic ranges.

Question 23

Parapatric

Answer 23

Populations are loacted adjacent to each other.

Question 24

Adaptive Radiation

Answer 24

Multiple groups evolve from common ancestor at same time.

Question 25

Morphology

Answer 25

Characters defining outward appearance of individuals.

Question 26

Intergrade

Answer 26

A cross between two populations of the same species.

Question 27

Step clines are gradual changes in variation through space.

Answer 27

False

Question 28

Subspecies are genetically separated from its ancestor.

Answer 28

False

Question 29

Taxonomic categories have phylogenies showing separate evolutionary lineages.

Answer 29

True

Question 30

Gradual clines reflect abrupt environmental conditions in a species distribution.

Answer 30

False

Question 31

Punctuated equilibrium states that species are constantly changing through time.

Answer 31

False

Question 32

Geographic variants do not indicate stages of speciation.

Answer 32

True

Question 33

Hybrid sterility is a type of prezygotic isolating mechanism.

Answer 33

False

Question 34

Morphological species are based on phenotypic similarity.

Answer 34

True

Question 35

Species are define on ability to reproduce only with members of its own species.

Answer 35

False