Monday, September 24, 2007

"Practicing for the CCA Test: Food Web ORQ"

Bellwork:
1) The difference between a population and a community is ________________.
2) Two abiotic factors are ___________.
3) Producers _________ their own food.

- Discuss: what happens when you remove an organism from a food web?
Losing your predator (the animal that eats you) will increase your numbers.
Losing your prey (your food) will decrease your numbers - you’ll starve.
There can be other changes as well.
- Students receive a copy of the ORQ they will be asked to complete on Wednesday. Ms. Davis models an ORQ that would receive a score of 4 (distinguished). They write the ORQ for Ms. Davis to check over and comment on - this will be returned to help them study for Wednesday.
- ORQ:
A) Using the list of organisms provided, identify ONE producer, ONE decomposer, and FOUR consumers, and diagram the food web they compose.
B) Choose ONE organism in your web and discuss the impact on the other organisms if it is removed from the ecosystem.
C) Choose ONE abiotic factor and discuss how changes in that factor could impact the ecosystem.

Note: 1st day of 2nd grading period