The document is a presentation that compares anatomical structures across different species, including humans. It contains slides that compare external structures, limbs, brains, and skin cells of various organisms like fruit flies, mice, chimpanzees, and humans. The slides show diagrams, images, and diagrams of these structures to illustrate similarities and differences. The presentation aims to teach about comparative anatomy and biology by examining physical traits across species.

1. Comparing Humans From Different Places
Ethiopia Vietnam
India Iraq
Learning Set 1 : Lesson 1 : Slide 1

2. Comparing External Structures
Fruit Fly Mouse
Human
Chimpanzee
Learning Set 1 : Lesson 1 : Slide 2

3. Comparing Limbs
Fruit fly Mouse hind
wing foot
Chimpanzee Human
foot foot
Not to scale! Learning Set 1 : Lesson 1 : Slide 3

4. Comparing Brains
Fly Mouse
Motor control
Smell
lobe of brain
Chimpanzee Human
Motor control
smell Motor control
smell
Learning Set 1 : Lesson 1 : Slide 4
Not to scale!

5. How Similar or Different are We From Each Other?
Me?
Learning Set 1 : Lesson 1 : Slide 5

6. Cheek Cells from Top Layer of Skin
Learning Set 1 : Lesson 3 : Slide 6

7. Cross Section of Skin
Top layer
Picture from
health.howstuffworks.com
Learning Set 1 : Lesson 3 : Slide 7

8. Cross Section of Skin
Top layer Flat dead layer
of cells
epidermis
Round living
cells
Learning Set 1 : Lesson 3 : Slide 8

9. Different Types of Skin Cells
courtesy of Laura P. Hale, M.D. Ph.D., Duke University
melanocytes Learning Set 1 : Lesson 3 : Slide 9

10. Cross section of Epidermis: Blow up
Melanin
(black
dots)
taken
up by
other
skin
cells
“Octopus”
like arms of
Melanocyte
cell
Melanin Other skin cells
Learning Set 1 : Lesson 3 : Slide 10

11. Skin Samples
darkest lightest
skin color skin color
courtesy of Laura P. Hale, M.D. Ph.D., Duke University Learning Set 1 : Lesson 3 : Slide 11

12. Some Common Molecules
NaCl
Table salt
Carbon dioxide, CO2
Water, H2O
Oxygen gas, O2
Carbon monoxide, CO
Methane, CH4
Vinegar, CH3COOH
Sugar, C6H12O6
Bleach, NaOCl Learning Set 1 : Lesson 5: Slide 12

13. Melanin
Molecular structure of phaeomelanin (A) and eumelanin (B).
[Diagram from http://photoprotection.clinuvel.com/node/204.]
Learning Set 1 : Lesson 5 : Slide 13