1. 4/13 Daily Catalyst Pg. 46 Comparative Embryology
1. What piece of evidence influence Darwin’s Theory of Evolution the most?
2. What type of classification organizes organisms by physical characteristics? What is a downside to this type of classification?
3. Compare the lesson on evolution of bacteria to the phrase survival of the fittest.
4. Two organisms share the trait of sharp, pronged teeth for ripping meat off a carcass. Is this an example of homologous, analogous, or vestigial?

2. 4/13 Class Business Pg. 46 Comparative Embryology
Quiz #12 on Wednesday
Evidence for Darwin’s Theory
Evolution test on Thursday, April 16th
Study guide due test day
Review day on Wednesday, April 15th
Quiz #12 on Review day
Human body begins on Friday, April 17th
Quiz Make up: Wyatt, Ridel, Francisco and Avery

3. Data Assessment Average Top Scorers Quiz #10 Fossils 1.90
Chris, Eva, Travis, Amani, Alfred, Jonathan,
ET #11 Comparative anatomy
2.61
Stephanie, Stephen, David, Chase, Ridel, Hefer, Fabien, Alfred, Eduardo, Zaven, Kayla, Eliud
Quiz #11 Darwin’s Evidence
1.36
Eva (4.1) and Daniel (4)

4. 4/13 Class Business Pg. 46 Comparative Embryology
Daily Catalyst
Class Business
Review
Comparative Embryology notes
Comparative Embryology project
Exit Ticket #12

5. Review Time!

6. Which layers are the same age?

7. What type of structure is shown below?
Homologous

8. Which layer is older, A or D?

9. What type of structure is shown below?
Vestigial

10. In your notes
Draw a cladogram depicting the relationship between the species, humans with the following specie information in the chart.
Species
Percent DNA similarity
Chimpanzee
99.6%
Dog
91.3%
Fruit Fly
74.2%
Roundworm
50.8%

11. Share the LEAST amount of DNA so furthest apart!
CHIMP
HUMANS
DOG
FRUIT FLY
ROUND WORM
Share the LEAST amount of DNA so furthest apart!

12. Note time-page 46
An animal consists of many thousands, millions, even trillions of cells organized into complex tissues and organs. The transformation from a zygote to this multicellular state is truly phenomenal.
Order and precision are required at every step, and both are clearly displayed in the first two major phases of embryonic development”: cleavage and gastrulation.

13. Essential Vocab Key Point #1: Cleavage
Rapid succession of cell divisions that produces a ball of cells (blastula)
Zygote  Embryo
Cell does not bigger, just divide into more, smaller cells

17. Key Point #2: Importance of Cleavage:
Creates a multi-cellular embryo
Organizing process
Beginning of specialized cells
For example: Heart cells vs. eye cells

18. Key Point #3: Gastrulation:
Takes blastula  gastrula
Gastrula- 3 layered cell
Adds more cells to the embryo
Sorts cells into distinct layers

19. Key Point #4: Importance of gastrulation:
The 3 layers begin to differentiate into tissues and organs

20. Key Point #5: Evolutionary Significance:
Embryonic development is controlled by similar genes in across diverse animal groups
Limbs develop in a similar way
Example: human arm vs chicken wing

22. Comparative Embryology Project
Directions: Read the pre-reading and answer the questions on notebook page 46.
Time: 15 minutes
Noise: 0 (SILENT)

23. Comparative Embryology Project
Directions: Complete and glue in the comparative chart on notebook page 46. Use the hints to determine where the embryos belong. Raise your hand with questions. This project is worth a test grade and will be checked at the end of class.
Time: until 10:45
Noise: 1 (with partner)

24. Name: _________ Date: 4/13 Period: 1 Score: ____/4
Exit Ticket #12 DNA
Name: _________ Date: 4/13 Period: 1 Score: ____/4
1. What is DNA?
2. If two organisms have little to no DNA similarities, what can we say about their relation?
3. Why are homologous structures evidence for evolution?
4. Use the diagram to explain the similarity between Human and Zebras.

25. Exit Ticket #12 1. What is DNA?
All of your genetic information (traits)
2. If two organisms have little to no DNA similarities, what can we say about their relation?
They are not closely related to one another
3. Why are homologous structures evidence for evolution?
The structures are similar because they share DNA from a common ancestor and used for a different purpose due to a different environment.
4. Use the diagram to explain the similarity between Human and Zebras.
They are not related to one another and only have one amino acid in common.