1. Chapter 5 Lessons 1, 4, & 5
Science

2. What is an ecosystem?
- all the living and nonliving things in an area. Any place living things are found.
- a group of organisms of one species that live in an area at the same time. ex. all the oak trees in an area.
- made up of all the populations in an area.
Members of a community depend on each other.

3. Ecosytem
Community
Populations

4. Ecosystem continued
parts of an ecosystem include air, water, soil, temperature, and sunlight.
Every part works together to meet the needs of each part.
Populations can live and grow only where their needs are met. If the needs are not met then the population will get
A the role that an organism has in an ecosystem. Spotted owl -
A is the place in which an organism lives. Includes soil, air and water, and well as the plants of the area.

5. Review What is a population? What is a community? What is a niche?
If the needs of a population aren't met what might happen?

6. Lesson 4 How do organisms interact?
Plants and animals interact with each other. Some are some are not.
Organisms over space, water, light, food, or mates. They often compete for their lives.
Even animals of the same species sometimes compete with each other.
Plants also compete for things like and sunlight. Ex Kudzu

7. Symbiosis is a long-term relationship between different species.
One species is always ex. Buffalo and the egret.
The other might be helped, harmed, or not affected at all.
Ex of both benefiting - buffalo and microrganisms inside of it.
Harmful - parasite and buffalo. Parasite feeds off another organism, called a

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9. Review
Describe why organisms compete and what the results of competition might be.
What is symbiosis?
What are 3 things animals compete over?

10. Lesson 5 How does energy move in ecosystems?
Every organism needs energy to live. Energy moves through an ecosystem through food chains, energy chains, or food webs.
make their own food for energy. ex. plants, protists, microorganisms.
cannot make their own food. Usually eat other organisms to get energy to live. Ex. All animals

11. Types of Consumers eat only plants.
also called predators eat only other animals.
eat both plants and animals.
eat waste or dead organisms.
Sun - plants - snowshoe hare - spotted owl - bacteria.

12. Herbivore
Decomposer
Omnivore
Carnivore

13. Food Chains and Webs Most animal food can be traced back to .
In the ocean food chains often start with plant- like microorganisms called
Can be short or long.
Food is more detailed than a food chain.

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15. Energy Pyramid
In an ecosystem, energy flows from the to producers to herbivores and carnivores.
An a diagram that shows the amounts of energy that flow through each level of a food chain.
Producers are at the most energy. There is less energy as you go up the pyramid are not shown.
Most of the energy travel up the pyramid because organisms use most of the energy to warm their bodies and do activities.

17. Review What does every organism need to live?
Write an example of a food chain.
What are organisms called that produce their own food?
What is an organism called that can not make their own food?
Give an example of a decomposer, herbivore, omnivore, and a carnivore.