Oct 5 (B Day) and Oct 6 (A day)

Objective:
The student will discuss food chains and trophic levels in order to explain the flow of energy in an ecosystem. The student will illustrate how all organisms are part of and depend on two major global food webs that are positively or negatively influenced by human activity and technology.


Warm Up:
1. A summer camp was built near a lake in the mountains. The campers used the lake for swimming, fishing, and boating. The relationships between three organisms found in the lake are shown below.

Striped fish are affected by biotic and abiotic factors in their environment. Which of these factors is biotic?
A. water temperature
B. mineral nutrients
C. freshwater algae
D. inorganic sediments

2. What would happen to the forest food web if the trees were all cut down?
A. Only the deer would be affected.
B. Only the mountain lion would be affected.
C. The deer and the mountain lion would be affected.
D. The cricket and the frog would be affected.

3. Which of these shows how energy is usually transferred in a food chain?
F. herbivore –› producer –› carnivore
G. producer –› carnivore –› herbivore
H. carnivore –› herbivore –› producer
J. producer –› herbivore –› carnivore

Use the following technical passage and diagram to answer questions 4 and 5 that follow.
Scientists have recently discovered hydrothermal vent communities on the ocean floor. A diagram of a hydrothermal vent community is shown in the figure below.


The organisms in this community live near vents that are heated by magma under the earths surface. Inorganic compounds such as sulfides mix with extremely hot water when they are released from the vents. Bacteria use the
sulfides to make food for themselves and other animals. Many of these bacteria live in the bodies of the giant tubeworms and the giant white clams that live in this community. The bacteria provide food to the tubeworms and the
tubeworms provide a place for the bacteria to live.

4. Which of these is an abiotic factor that influences this ecosystem?
A. food
B. bacteria
C. sulfide concentration
D. giant tubeworms

5. Which of the following best describes the process that the vent bacteria use to make their own food?
F. photosynthesis
G. succession
H. chemosynthesis
J. denitrification


Vocabulary:
1. ecosystem
2. biome
3. autotroph
4. producer
5. photosynthesis

Classwork:
1. Warm Up and Vocabulary
2. reveiw of homework
3. Notes 3-2
4. Closure

Tonight's Homework:
1. Read and Outline 3-3
2. Have Bee book ready to be handed in on Wednesday/Thursday
points possible
Bee Book- 20 points- Assessment
Vocabulary(40 words)- 40 points- Classwork
Warm Ups (8 stamped warm ups)- 40 points- classwork

Homework Due:
Read and Outline 3-2
Grade report signed