Evolution

Question 1

What is evolution?

Answer 1

change in frequency of traits in a population over time and organisms came from pre-existing organisms

Question 2

What is Lamarck’s Theory of Acquired Characteristics?

Answer 2

he thought that you would gain or lose features if you overused or didn’t use them

Question 3

What was Charles Lyell known for?

Answer 3

from his observations, he is given credit for the general acceptance that all features of the Earth’s surface are gradually affected by chemical, physical, and biological processes

Question 4

Main points of “The Origin of Species” by Darwin:

Answer 4

1. Species produce more offspring than can survive
2. Individuals compete for resources or mates
3. Those with the best traits produce the most
   offspring (which will also have those traits)

Question 5

What is Natural Selection?

Answer 5

1. Variation
2. Inheritance
3. Differential Survival
4. Adaptation

Question 6

Evidence for Evolution:

Answer 6

1. Fossils
2. Homologous structures
3. Vestigial organs
4. DNA
5. Embryos
6. Direct Observation

Question 7

What is speciation?

Answer 7

the formation of a new species

Question 8

What is a species?

Answer 8

group that can interbreed, produce fertile offspring

Question 9

What is adaptive radiation?

Answer 9

one species becomes many species

Question 10

What does a phylogenetic tree show?

Answer 10

shows how species are related