Lecture 2 Flashcards
1
Q
Trait
A
an observable feature of an organism
2
Q
Histogram
A
Bar graph showing distribution of quantitative data
3
Q
Population
A
group of interbreeding organisms in a particular area
4
Q
Darwins Theory
A
Assumes life exists and is well supported
5
Q
Descent with Modification
A
Organisms are related through the descent of a common ancestor. Species maintain characteristics of a common ancestor.
6
Q
Origin of Life
A
Must explain hownon-living chemicals become life
7
Q
Darwins 4 Major postulates
A
- Too Many offspring born
- Variation in offspring
- Survival/Reproduction is not random
4.Many traits heritable
8
Q
Natural Selection
A
Gradual non random process where biological traits become less more more common
9
Q
Correlation
A
Relationship where things happen or change
Correlation DOES NOT EQUAL relatation
10
Q
Adaptation
A
Inherited trait that enhances reproduction in a specific environment.
