Show:
Natural Selection
Adaptations
Evidence
Microevolution
Vocab
100
What is the differences between individuals that contributes to natural selection?
Variation
100

What type of adaptation involves a chemical trait? 

A physiological adaptation

100
Where do we find evidence for what extinct organisms looked like?
Fossils
100

What is another term for migration? 

Gene Flow

100

What structures do whales have that are left over from a land ancestor? 

Pelvis and Femur

200
What is the fight between individuals for limited resources called?
Competition
200
When industrial pollution darkened the trees this peppered moth trait became an adaptation.
Dark gray color.
200

What do we call similar body parts on different species that can be evidence for a common ancestor?

Homologous structures

200

What term do we use for a natural disaster wiping out part of a population? 

Bottleneck Effect

200
What is a well tested concept that explains a wide range of observations?
Scientific Theory
300
What is producing many more offspring that can possibly survive?
Overproduction
300
What is found in every cell and a gives an organism its adaptations?
DNA
300
What evidence can be found when looking into a chicken's egg, a turtles egg and a rat fetus that indicate a common ancestor?
Similarities in early development
300

What term do we use for a few individuals breaking off to start a new population? 

Founder Effect

300
What is a trait that helps an organism survive and reproduce?
Adaptation
400
What is required for natural selection to turn two groups into two different species?
Separation or isolation
400

Why is the theory that giraffes grew long necks from stretching wrong based on information about adaptations?

You are born with your adaptations

400
What are similarities in DNA an indication of?
A common ancestor
400

What type of natural selection selects for one extreme? 

Directional

400

What type of adaptations involves a physical trait? 

Structural

500
How long does it take for evolution to occur?
MANY generations
500
What are two examples of behavioral adaptations? 

Hibernation, migration, courtship displays

500

What are three features that all vertebrate embryos share? 

Tails, gill slits, and a backbone
500

What type of natural selection selects for both extremes and eliminates the average condition?

Disruptive

500

Provide two examples of structural adaptations in the space below. 

Feathers, scales, camouflage, mimicry