Systematics

Question 1

systematics

Answer 1

the study of diversity of life

Question 1

morphology

Answer 1

study of the form

Question 2

DNA barcoding

Answer 2

see the difference in DNA code

Question 3

Linnaean classification system

Answer 3

kingdom –> phylum –> class –> order –> family

Question 4

phylogeny

Answer 4

a family tree
- each branch has new traits

Question 5

basal taxa

Answer 5

earliest evolutionary branch
- most closely related to common ancestor

Question 6

sister taxa

Answer 6

branches that share a direct common ancestor

Question 7

shared ancestral character

Answer 7

character trait that shared by a common ancestor and all descendants
ex. vertebral column

Question 8

shared derived character

Answer 8

character trait that is unique to a certain clade
ex. hair

Question 9

monophyletic clade

Answer 9

a group that consists of a common ancestor and all descendants

Question 10

paraphyletic clade

Answer 10

a group that includes a common ancestor but not all descendants

Question 11

polyphyletic clade

Answer 11

a group that includes members that do not share a direct ancestor