# MAKE A PREDICTION How does camouflage affect survival rates? - PowerPoint PPT Presentation

1 / 10

MAKE A PREDICTION How does camouflage affect survival rates?. http://animals.pppst.com/banner_camouflage.gif. Animal Camouflage. Hypothesis: Write your prediction here. How does camouflage affect survival rates? Purpose: To view the effects of animal camouflage on natural selection.

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.

### Download Presentation

MAKE A PREDICTION How does camouflage affect survival rates?

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

#### Presentation Transcript

MAKE A PREDICTION

How does camouflage affect survival rates?

http://animals.pppst.com/banner_camouflage.gif

### Animal Camouflage

• Hypothesis: Write your prediction here. How does camouflage affect survival rates?

• Purpose: To view the effects of animal camouflage on natural selection.

• Materials: black beads, colored beads, 1 multicolored container with lid, 1 black and white container with lid, data sheet, pencil or pen.

### Procedure:

• Count out 50 black beads and place in container

• Count out 50 “other” color beads and place in container

• Fill in the “AT START” columns on your data sheet.

PERCENT OF TOTAL = ___# of beads__ X 100 total beads in box

## FEEDING RULES

4. Look into container and pick 1 bead.

Keep your eyes OPEN!

Pick the FIRST ONE you SEE!

NO picking your favorite color!

Only pick ONE AT A TIME!

5. Shake, choose, repeat until you remove 20 beads.

http://www.feebleminds-gifs.com/ani5.html

### AFTER 1ST FEEDING

• Calculate number of black beads IN BOX

7. Calculate number of “other” color beads IN BOX

8. Fill in “AFTER 1ST FEEDING” column on data sheet.

PERCENT OF TOTAL = ___# of beads_ X 100 total beads in box

http://greenwood.alpinedistrict.org/Root%20Greenwood%20/images/pictures/Mom,%20Dad%20&%20Baby.jpg

http://pro.corbis.com/images/42-18867237.jpg?size=67&uid=%7B21E60102-7098-4CA2-B76E-6ACC29D9CA18%7D

### REPRODUCE

9. Number of black beads in box ÷ 2

Add this many black beads to box

10. Number of “other” color beads in box ÷ 2

Add this many “other” color beads to box

(repeat step 9 using colored beads)

Round UP for odd numbers of beads.

11. Fill in “AFTER 1st REPRODUCTION” column on data sheet.

## 12. FEED AGAIN

Keep your eyes open!

Pick the FIRST ONE you SEE!

NO picking your favorite color!

Only pick ONE at a time!

Shake, choose, repeat until you remove 20 beads.

http://www.feebleminds-gifs.com/ani5.html

### 13. Calculate and record the number of each type of bead in your container

• Calculate number of black beads IN BOX

• Calculate number of “other” color beads IN BOX

• Fill in “AFTER 2nd FEEDING” column on data sheet.

PERCENT OF TOTAL = ___# of beads_ X 100 total beads in box

http://greenwood.alpinedistrict.org/Root%20Greenwood%20/images/pictures/Mom,%20Dad%20&%20Baby.jpg

http://pro.corbis.com/images/42-18867237.jpg?size=67&uid=%7B21E60102-7098-4CA2-B76E-6ACC29D9CA18%7D

### 14. REPRODUCEAGAIN

Number of black beads in box ÷ 2

Add this many black beads to box

Number of “other” color beads in box ÷ 2

Add this many “other” color beads to box

Round up for odd numbers of beads.

Fill in “AFTER 2nd REPRODUCTION” column on data sheet.