This document provides an overview of key concepts to be covered in Mrs. Chandlers 7th grade ecology lesson, including: 1) The differences between ecosystems and populations 2) The roles of producers, consumers, and decomposers 3) How to make Venn diagrams, food chains, and food webs It defines producers as organisms that get energy from sunlight, consumers as organisms that eat producers or other consumers, and decomposers as organisms that break down dead organisms. Food chains and food webs are described as models of how energy moves through an ecosystem.

1. Mrs. Chandlers 7th Grade
Ecology
October 23, 2011

2. WHAT YOU WILL LEARN IN THIS LESSON…
1.What the difference between ecosystem and
population is.
2.What the difference between producer,
consumer, decomposer the roles they play.
3. How to make Venn Diagram, food chain, and
food web.

4. The study of the
interactions between
organisms and their
environment
Jodi Lock ,March 201

5. Every organism has a niche or
a role in an ecosystem based
on how it gets energy.
Jodi Lock ,March 2010

6. Decomposers: organisms that get
energy by breaking down the
remains of dead organisms.
Jodi Lock ,March 2010

7. Producers: organisms that get
energy from sunlight and make food.
Ex: plants, plankton, algae,
cyanobacteria, some bacteria
Jodi Lock ,March 2010

8. Consumers: organisms that eat
producers or other consumers.
Primary: eat producers
Secondary: eat primary consumers
Tertiary++: eat secondary consumers, etc.
Jodi Lock ,March 2010

9. Consumers can be:
Herbivores: eat only plants
Carnivore: eat only other consumers
Omnivore: eat either producers or consumers
Scavenger: eat dead animals
Jodi Lock ,March

10. 5 Levels of Organization:
Organism
Population
Community
Ecosystem
Biosphere
Jodi Lock ,March 2010

11. FOOD CHAIN
Food Chain: A model that shows how energy moves through
an ecosystem from the producer to the consumers.
Movie Game

12. FOOD WEB
Food Web: A model that shows how food chains overlap in an
ecosystem
Create a Food Web

13. ENERGY PYRAMID
 Energy Pyramid: A way to show how energy is lost through the different
levels of a food web.
 Lorax Video

14. VENN DIAGRAM
As a class make and discuss a Venn diagram.
Population
Ecosystem
Community

15. WORKS CITED
Lock, Jody. Slide Share.
March 2010, Web. October 2011
http://www.slideshare.net/jlock1