7.2 Evidence for Evolution

• Biologie
• 9th Grade

7.2 Evidence for Evolution

4 rules of Natural Selection

Which ones are they?

1. Individuals within a
population ......... (choose a verb)

2. These differences are passed
from ....1... to ...2......

3. Some individuals ...1.. better in the ......2....
than others and have a bigger chance to
....3...

4. Eventually, the population has changed
(adapted) because all / most / some
individuals fit in the environment.

7.2 Evidence for Evolution

Name some evidence for the fact that all
mammals (including you)
have a common ancestor.

01:15

Describe the adaptation the ancestors of the whale underwent.

01:35

Describe the two groups in which the ancestors of the whale family evolved.

Evidence for Evolution

1. Homologous structures
2. Analogous structures
3. Embryology 
4. Vestigial structures

What is the difference between direct and indirect evidence?

Homologous structures have...

1. Similar functions, but different structures
2. Similar structures but different functions

Analagous structures have...

1. Similar functions, but different structures
2. Similar structures but different functions

Comparison

7.2 Evidence for Evolution

create.kahoot.it

Antibiotic resistance