Chapter 14 Flashcards
1
Q
phylogeny
A
evolutionary lineage
2
Q
homologous structures
A
similar characteristics of organisms that are due to their shared ancestry
3
Q
vestigial structures
A
structures in certain organisms that have resulted from evolution under selective pressure
4
Q
epochs
A
tens of thousands to millions of years
5
Q
periods
A
millions to tens of millions of years
6
Q
eras
A
tens of millions to hundreds of millions of years
7
Q
eons
A
hundreds of millions to billions of years
8
Q
cratons
A
cores of extremely ancient rock that continents are built around
9
Q
Rodinia
A
the first known supercontinent
10
Q
orogeny
A
a tectonic episode characterized by mountain building
