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Biology Agendas:

Agenda 09/26/00 to 09/27/00

  1. Ecosystems Community Interactions
    1. Food Webs
    2. Caribou and Wolves
  2. Homework pg 343-348
    1. Outline the section
    2. Questions 1, 2, 4.

Class Notes:

Ecosystem

 

Community

 

Habitat

Niche

Food Webs

(Trophic Levels)

   

Trophic Level

   

Mass

4

Top Predator

¯

ü

1 kg

3

Carnivour

¯

  • Heterotrophs

(Other)

10 kg

2

Herbivour

¯

þ

100 kg

1

Plants

(Autotrophs)

Self

 

1,000 kg