Sept 27

Objective:
The students will discuss food chains and trophic levels in order to explain the flow of energy in an ecosystem.


Warm Up:
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1. Which of these organisms is not an omnivore?
a. herring
b. shrimp
c. killer whale
d. blue whale

2. Improvement in fishing techniques have led to an increase in the amount of herring harvested in recent decades. What would be a direct effect of the increased harvest of herring.

A. the blue whale population would decrease
B. the herring gull population would increase
C. the killer whale population would increase
D. the shrimp population would increase

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3. Which of these organisms are producers in the river ecosystem?
A. algae
B. trout
C. minnows
D. Zooplankton


4. Which of these shows how energy is usually transferred in a food chain?
A. herbivore-->producer-->carnivore
B. Producer-->carnivore-->herbivore
C. Carnivore--> Herbivore--> producer
D. Producer--> herbivore--> Carnivore

Vocabulary:
1.chemosynthesis
2. heterotroph
3. consumer
4. herbivore
5. carnivore


POA:
1. Warm up and Vocabulary
2. Hand in homework
3. brainstorm
4. Introduction of Owl Pellets lab
5. Pre-lab questions
6. Owl Pellet lab
7. Closure: What role does the owl have in its ecosystem


Tonight’s Homework:
Read and Outline 3-3