Review Answer Key -

Create a new cover for your Levels of Interaction Books. (Do this on an 8 1/2 x 11 sheet of printer paper) It must have: (Complete by Friday, May 17th)
  • The title of the ecosystem
  • Your name
  • A full page, colorful drawing of your ecosystem

Food Chains & Food Webs

Build a food chain
Build a food web
Food Chain Definitions & Games
Create a food web
Food chain Brianpop video
Energy Pyramid Brainpop video (covington, cobra)
Learn about Energy pyramids
Model and Energy Pyramid
external image EnergyPyramid.gifexternal image energy-pyramid-ecosystem.jpg

Interactions among living things

Relationships among Populations.ppt
Symbiotic Relationships
Symbiotic Relationships

Complete the following activities below to learn more about the Interactions Among Living Things
  • Read pages 24-26 in the Environment Science book. (To access the book online see the information at the bottom of this page.)
  • Watch the 15 min movie on Niche
  • Complete the Interacting Populations Activity. On a separate sheet of paper answer the 5 questions about the Isle Royale wolf & moose population. Hand copy the Interactions table and complete the activity.
  • Read pages 27-31 in the Environmental Science book.
  • Watch the Web of Life: Producer to Predator (24 min) Log in: tb03bps Username: goblue

Population size

Population Size.ppt
Limiting Factors

Complete the following activities below to learn more about Limiting Factors & Population Size
  • Watch the 15 min movie & take notes on the problems with white-tailed deer & possible solutions - Population dynamics
  • Take the online Population Dynamics Quiz
  • Read the article about Deer Cull approval in Rochester Hills Michigan in 2008
  • Read the Science & Society Article on the overpopulation of White-tailed deer
  • Go back and re-read "Animal Overpopulation: How can people help?" on pages 22 - 23 in the Environmental Science book. (To access the book online see the information at the bottom of this page.)
  • Alone or with a partner you need to complete the following: Due Monday, May 13th
    1. Identify the Problem: In your own words, explain the problem created by the overpopulation of white-tailed deer.
    2. Analyze the Options: List the ways that people can deal with the overpopulation of white-tailed deer. State the positive and negative points of each method.
    3. Find a Solution: Suppose you are an ecologist in an area that has twice as many deer as it can support. Propose a way for the community to deal with the problem.


What is an ecosystem?
Ecosystem games, pictures, movies
Ecosystems & Biomes
What is an ecosystem Brainpop video

Levels of Interaction BookChecklist
1. Cover
  • This must include the title of the Ecosystem you have chosen & your name.
  • The cover must include 3 interesting facts about that ecosystem
2. Each Page
  • Name & Define each level (see the pdf above. Smallest circle - organism, 2nd smallest - population, etc.)
  • Draw a photo of an animal or plant that is appropriate to the ecosystem you chose. Label your organisms.
3. All pictures must be in color.
4. CLASSY work.

Michigan Ecosystems
The department of Natural Resources has a website that contains great information about the ecosystems below. Go to this DNR-Natural Communities site.
  • Wetlands
  • Coastal Dunes
  • Forests
  • Jack Pine Forests
  • Rivers



Abiotic - non-living factors in an environment. Ex. soil type, rainfall, sunlight, heat, topography, etc.
Adaptation - the behavior and/or physical characteristic that allows an organism to live successfully in their environment
Biotic - living organisms
Biosphere - the thin layer encircling the Earth where air, land, soil, and water exist. This is where life exists.
Biome - the community of living organisms in a given area characterized by similar climate and geography
Decomposer - organisms that break down wastes and dead organisms and return the raw materials to the ecosystem
Ecosystem - a community of organisms interacting with one another and the non-living environment.
Carnivore - a consumer that only eats animals
Carrying Capacity - the largest population an area can support
Commensalism - a symbiotic relationship in which one species benefits and the other species is neither helped nor harmed
Community - a group of living (biotic) organisms (animals,plants and microbes) that share the same living area and resources
Competition - the struggle between organisms to survive as they attempt to use the same limited resources
Consumer - an organism that obtains energy by feeding onother organisms
Energy Pyramid - shows the amount of energy that moves from one feeding level to another in a food web
Food Chain - a series of events in which one organism eats another and obtains energy
Food Web - consists of many overlapping food chains in an ecosystem
Habitat - the place where an organism (plant, animal, or microorganism) naturally lives or grows.
Herbivore - a consumer that only eats plants
Host - the organism that a parasite lives in or on in a parasitic relationship
Limiting Factor - an environmental factor that causes a population to decrease. Some factors include: food & water, space, weather conditions
Mutualism - a symbiotic relationship in which both species benefit
Natural Selection - the process in which a characteristic that makes an individual better suited to its environment may eventually become common in that species
Niche - the role of an organism, or how it makes its living. This includes the type of food an organism eats, how it obtains its food, and which other organisms use the organism as food. It also includes when & how the organism reproduces and the physical conditions it requires to survive.
Omnivore - a consumer that eats both plants and animals
Organism - any form of life
Parasite - the organism that benefits in a parasitic relationship
Parasitism - a symbiotic relationship in which one organism lives on or inside another organism and harms it.
Population - a group of individual organisms for the same species living in a particular area
Predation - an interaction in which one organism kills another for food
Predator - the organism that does the killing
Prey - the organism that is killed
Producer - an organism that can make its own food
Scavenger - a carnivore that feeds on the bodies of dead organisms
Species - a group of similar and related organisms (for example, blue jays & robins are separate species)
Symbiosis - a close relationship between two species that benefits at least one of the species

How to access the online Environmental Science Textbook

Class/Group name: Fitz/Brown Science

Class access code: D255EEEDD060F600CDD6
When you enroll or register, type the access code exactly as shown above.
Use all uppercase letters, and include dashes.

Registration/Enrollment Instructions

First time users:
To register in SuccessNet:
  1. Go to
  2. Click Register
  3. On the first screen, type the class access code above in the access code field.
  4. Follow the instructions to register.Please DO NOT use your full name as your user name.
    Write your user name on the blank line above exactly as you typed it.
  5. At the end of registration process, the SuccessNet login page appears.
  6. Log in by typing your user name and password.
Existing users:
To enroll in this class:
  1. Go to
  2. Log in by typing your existing user name and password.
  3. From your Home Page, click My Account.
  4. Click Add Class/Group
  5. Follow the instructions, and use the class access code above to enroll in this class or group.

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