Natural Selection
Evolution
Evidence for Evolution
100
Who developed the theory of Natural Selection?
Charles Darwin
100
What is evolution?
The gradual change in the genetic makeup of a species over time. (Will take answers that are similar)
100
What are fossils?
Old remains of an organism
200
What is the terms for traits that help an organism survive and reproduce?
Adaptations
200
What is natural selection?
The process by which organisms with traits that help them survive and reproduce are more likely to pass. (Will take answers that are similar)
200
How do fossils support evolution? Hint: Think about the horse fossils in the station activity
They show changes over time
300
What is selective pressure?
An environmental factor that affects survival.
300
What is the difference between natural selection and evolution?
Natural selection is a process that drives/causes evoluton by selecting for beneficial traits.
300
Fossils
Vestigial Structures
DNA
Homologous Structures
Homologous Structures
400
Give on example of a selective pressure.
Answers may vary
400
Give one example of natural selection we have learned and explain it
Answers may vary
400
In stage one (top row) of these embryos, most of the embryos________
look very similar
have very different features
show different stages of development
have only a tail if they are non-human
look very similar
500
Mutations are a change in what?
DNA
500
What does "Survival of the Fittest" mean?
Survival is determined solely by luck and chance.
Only the strongest organisms will dominate all environments.
It means that only those organisms best suited to their environment will survive and reproduce.
It means that only those organisms best suited to their environment will survive and reproduce.