Cladistics and Taxonmy Terms Flashcards Preview

Anthropology (ANT 301) > Cladistics and Taxonmy Terms > Flashcards

Flashcards in Cladistics and Taxonmy Terms Deck (10):
1

Family names will always end in _____ and Subfamily names will always end in____

“-dae”
“-nae”

2

Homologous

shared by two organisms because they are
inherited from a common ancestor

3

Analogous

similar anatomical structures that evolved independently to
accommodate a similar functional demand

4

Homoplasy

how organisms might share a character that evolved independently in the two
groups

5

Homoplasy: Parallelism

independent evolution of similarity in closely-related organisms. Typically
there is similarity in the developmental pathway and genetic basis of similar traits.

6

Homoplasy: Convergence

independent evolution of similarity in distantly-related taxa. Typically,
there is dissimilarity in the developmental pathway and genetic basis of similar traits.

7

Homoplasy: Evolutionary reversal

the occurrence of a trait in a descendent that is identical to that of a distant ancestor, but different than of the immediate ancestor

8

Derived (normal, shared)

apomorphies, synapomorphies

9

Primitive (normal, shared)

plesiomorphies, symplesiomorphies

10

unique derived character

autapomorphy, found only in one of the species being studied