Learning Set 1: Lesson 1

Ethiopia

Iraq

Vietnam

India

Learning Set 1 : Lesson 1 : Slide 1

Comparing Humans From Different Places

Chimpanzee

Human

Fruit Fly Mouse

Comparing External Structures

Learning Set 1 : Lesson 1 : Slide 2

Comparing Limbs

Fruit fly

wing

Mouse hind

foot

Chimpanzee

foot

Human

foot

Not to scale! Learning Set 1 : Lesson 1 : Slide 3

lobe of brain

Motor control

Smell

Mouse

Motor control

Motor control

Chimpanzee Human

Fly

Not to scale!

smell

smell

Comparing Brains

Learning Set 1 : Lesson 1 : Slide 4

Me?

How Similar or Different are We From Each Other?

Learning Set 1 : Lesson 1 : Slide 5

Cheek Cells from Top Layer of Skin

Learning Set 1 : Lesson 3 : Slide 6

Top layer

Cross Section of Skin

Picture from

health.howstuffworks.com

Learning Set 1 : Lesson 3 : Slide 7

epidermis

Top layer

Cross Section of Skin

Flat dead layer

of cells

Round living

cells

Learning Set 1 : Lesson 3 : Slide 8

melanocytes

courtesy of Laura P. Hale, M.D. Ph.D., Duke University

Different Types of Skin Cells

Learning Set 1 : Lesson 3 : Slide 9

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

courtesy of Laura P. Hale, M.D. Ph.D., Duke University

darkest

skin color

lightest

skin color

Learning Set 1 : Lesson 3 : Slide 11

Skin Samples

Some Common Molecules

Carbon dioxide, CO2

Methane, CH4

Water, H2O

NaCl

Carbon monoxide, CO

Oxygen gas, O2

Table salt

Sugar, C6H12O6

Bleach, NaOCl

Vinegar, CH3COOH

Learning Set 1 : Lesson 5: Slide 12

Melanin

Molecular structure of phaeomelanin (A) and eumelanin (B).

[Diagram from http://photoprotection.clinuvel.com/node/204.]

Learning Set 1 : Lesson 5 : Slide 13