Tuesday, October 30, 2007

"Walkingsticks and Camouflage"

Bellwork:
1) A brown walkingstick will camouflage with a __________ environment.
2) Limiting factors ___________ the number of organisms in an ecosystem.
3) With 0 brine shrimp in December and 63 in June, ________________ is a limiting factor.

-Review definition of "adaptation": Any structure (body part or color) or behavior that helps an organism survive or reproduce
-Introduce walkingsticks
-Use walkingstick simulations on Populations and Ecosystems CD-ROM or website (see comments for username and password)
-Complete worksheets: "Walkingstick Predation-Bush Environment" and "Five Generations of Walkingsticks"

-Reminder: CCA Test on Friday