1. Materials: Worksheet
**Turn in Moth Activity to front tray. Catalyst: What are the components of evolution by natural selection and what do they mean?

2. Materials: Worksheet
**Turn in Moth Activity and GPA assignment to front tray.
Catalyst:
What does it mean if organisms have similar DNA?
An ostrich has wings but it does not fly. What is this type of structure called?
What is embryology?
According to relative dating, how do you determine which fossil is older?

3. Elite Eight Trait Check-Up
Respect the Threshold
Everyone on time?
Silent for First Five?
Be Prepared (2 min)
Seated
Have materials
Working on catalyst

4. Class Motto
If there is a problem, We look for a solution. If there is a better way, We find it. If we need help, We ask. If a teammate needs help, We give.

5. Announcements
Research Question are Overdue! Turn them into the tray ASAP
GPA Assignment due date extended to Wednesday.

6. Objectives
I can define the 5 pieces of evidence for evolution and how they prove evolution occurred.
I can distinguish between homologous, analogous, and vestigial structures.

7. Notes 1.16: Evidence of Evolution
Your notes from the book serve as the equivalent of these notes.
If you did not take notes from the book, it would benefit you to take notes on your own time from the book or from this PowerPoint.
I am going to quickly review evidence before you work on classwork for today.

8. Evidence for Evolution
Adaptations
Fossils
Anatomy
Embryology
Biochemistry

9. 1. Adaptations
An adaptation is a change in an organism that allows them to survive better in their environment.

10. Camouflage

11. Where have you seen examples of camouflage?

12. Mimicry

13. 2. Fossils
Fossils are preserved remains of long-dead organisms.

14. 2. Fossils Camel Evolution Age Organism Skull and teeth Limb bones
Paleocene
65 million
years ago
Eocene
54 million
years ago
Oligocene
33 million
years ago
Miocene
23 million
years ago
Age
Present
Organism
Skull and
teeth
Limb
bones

15. 3. Anatomy Anatomy is study of the way our bodies are put together.
Anatomy is evidence for evolution because it shows how the structures of organisms have changed over time.

16. 3. Anatomy
Homologous structures have the SAME STRUCTURE and DIFFERENT FUNCTION. Evolved from a common ancestor.

17. 3. Anatomy
Analogous structures have the same function but evolved from different places.

18. Example of an Analogous Structure:

19. Anatomy
Vestigial structures – structures that are the reduced forms of functional structures in other organisms
Ex: tailbone in humans
Appendix

21. Vestigial Structures

22. 4. Embryology An embryo is the earliest form of a baby.
embryos that look alike, suggest that they all evolved from the same place.

23. 5. Biochemistry
Biochemistry is the study of small molecules such as DNA.
The more similar the DNA sequence, the more closely related organisms are.

24. 2 ways to date the earth:
Relative Dating: lower levels of rock or fossils are older than higher levels
Absolute Radioactive Dating: the actual age of a sample by looking at what it is made of.

25. RELATIVE DATING

26. Classwork

27. Fossil Lab
Go to msnay.weebly.com