classification

Question 1

classification

Answer 1

ordering species into groups and naming the groups

Question 2

phylogenetics

Answer 2

developing hypothesis to reconstruct the evolutionary history or relatedness among species

Question 3

cladograms

Answer 3

tree like diagrams existing of taxa, nodes, and characters

Question 4

synapomorphy

Answer 4

trait shared by 2 or more taxa and their last common ancestors

Question 5

symplesiomorphy

Answer 5

trait shared by 2 or more taxa, but also with other taxa with an earlier last common ancestor

Question 6

ingroup

Answer 6

group being studied

Question 7

outgroup

Answer 7

group or lineage closely related to the ingroup

Question 8

clade

Answer 8

branch of a cladogram

Question 9

geochronological data

Answer 9

data from rocks in which fossils were found

Question 10

monophyletic

Answer 10

group descending from a single ancestor including all the descendants

Question 11

paraphyletic

Answer 11

group including some but not all descendants of one ancestor

Question 12

polyphyletic

Answer 12

group containing taxa not all sharing a recent ancestor

Question 13

molecular clock

Answer 13

uses rates of molecular changes calibrated with fossil data to deduce the time in geological history when 2 taxa diverged

Question 14

cenozoic

Answer 14

the age at which mammals were most widespread and morphologically diverse vertebrates