Macroevolutionary Patterns - Ch. 14

Question 1

Microevolution

Answer 1

Evolution occurring within population

Question 2

Macroevolution

Answer 2

Evolution above the species level (extinction)

Question 3

2 Aspects of Macroevolution

Answer 3

Major Innovations in traits (Legs)
Origins, Diversification, losses of Major lineages (Mammals)

Question 4

Biogeography

Answer 4

The study of distribution of species across space and time

Question 5

Dispersal

Answer 5

Movement of populations from one region to another with limited return exchange

Question 6

Vicariance

Answer 6

Formation of geographic barriers to dispersal that divide a once continuous population

Question 7

Diversity

Answer 7

Created by speciation and extinction

Question 8

Evolutionary Faunas

Answer 8

Many species have been found to originate and go extinct together

Question 9

6th Mass Extinction

Answer 9

Humans impact on species diversity

Question 10

Turnover

Answer 10

The disappearance (extinction) of some species and their replacement by others (origination).

Question 11

Standing Diversity

Answer 11

The number of species present in a particular area at a given time.

Question 12

Origination

Answer 12

when fossil record indicates a lineages split into two distinct clades.

Question 13

Anagenesis

Answer 13

Wholesale transformation of a lineage from one form to another.

Question 14

Background Extinction

Answer 14

The normal rate of extinction for a taxon

Question 15

Mass Extinction

Answer 15

A statistically significant departure from background extinction rates that results in a substantial loss of diversity