1. Objective: To trace flow of energy through living things
Ecology- Energy Flow
Objective: To trace flow of energy through living things

2. Objective: To trace flow of energy through living things
Producers/Autotrophs:
use energy from sun/chemicals to produce food.
From sunlight—photosynthesis
From chemicals—Chemosynthesis

3. Objective: To trace flow of energy through living things
Consumers/Heterotroph:
rely on other organisms for their energy and food supply
Herbivores- eat plants
Carnivores- eat meat
Omnivores- eat plants and meat
Detritivore- eat plant and animal remains (called detritus)
Earthworms, snails, crabs
Decomposers- break down organic matter
Fungi and bacteria

4. Objective: To trace flow of energy through living things
Energy Flow
Food chain and Food web track energy flow
Webs are made up of several food chains

5. Objective: To trace flow of energy through living things
Trophic level: each step in a food chain
1st producers
2nd consumers
3rd consumers
4th consumers
All depend on the trophic level below them.

6. Objective: To trace flow of energy through living things
Ecological pyramid- Shows amounts of energy or matter contained in each trophic level
Energy pyramid-
Only 10% of energy is passed to next level

7. Objective: To trace flow of energy through living things
Biomass pyramid-
Living tissue within given trophic level (shows food available for each level)

8. Objective: To trace flow of energy through living things
Pyramid of numbers-
Number of individuals at each trophic level (not always a pyramid shape--- a tree is one organism while a shrub is one organism)