1 Terms Flashcards
1
Q
Biological Evolution
A
Gradual changes in living organisms over time
2
Q
Lineage:
A
A group of organisms descended from a common ancestor
3
Q
Natural Selection
A
Nature’s process where better-adapted traits in organisms tend to survive and reproduce more.
4
Q
Homologous
A
Structures or genes that share a common origin or ancestry
5
Q
Synapomorphy:
A
A unique shared trait that helps identify a group’s common ancestry.
6
Q
Phylogeny
A
The study of how living things are related in an evolutionary tree.
7
Q
Genetic Drift:
A
Random changes in gene frequencies within small populations.
8
Q
Phenotypes
A
Observable physical or behavioral characteristics of an organism.
