1. Introduction to Evolution

2. Do Now in Science Journal
What is the evidence of common ancestors in living organisms?

3. A T C G T A T G C G G… The Code of Life…
The “genetic code” of the chromosome is the SPECIFIC ORDER that bases occur.
A T C G T A T G C G G…

4. Genetic Diversity…
Different arrangements (of ATCGs) in the GENTIC CODE provide the key to DIVERSITY among living organisms.

5. This might be________Because________

6. This Mouth belongs to____________ Because________
Proboscis

7. This Mouth belong to_______Because
How does this adaptation help the organism pass on its genes to its offspring??

8. Vocabulary Related to Evolution
Acquired characteristic- change in function or structure of an organism during its lifetime
“buff” biceps
Inherited characteristic- characteristics that are determined by the genetic code. Passed from parents to offspring.
shape of toes/feet

9. A characteristic that helps an organism survive and reproduce in its environment is called an adaptation.
What adaptation do these crabs have that enable them to survive and reproduce?

10. NO
YES
Are these part of a species?
A species is a group of organisms that can mate with one another to produce fertile offspring.

11. Do Species Change over Time?
Scientists observe that species have changed over time.
The process in which populations gradually change over time is called evolution.