1. Chapter 5 Lesson One: Interactions in an Ecosystem

2. Ecosystem
All the living and nonliving things in an environment, including their interactions with each other

3. Abiotic Factor A nonliving part of an ecosystem
Examples: water, minerals, sunlight, air, climate, and soil

4. Biotic Factors A living part of an ecosystem
Examples: animals, plants, fungi,
protists, and bacteria

5. All the members of one species in an area
Population
All the members of one species in an area

6. Community All the living things in an ecosystem
(All the populations together)

7. The study of how living and nonliving things interact
Ecology
The study of how living and nonliving things interact

8. The place where a plant or animal naturally lives and grows
Habitat
The place where a plant or animal naturally lives and grows

9. The role of an organism in a community
Niche
The role of an organism in a community

10. Living Things are made up of 50 to 95 percent water.

11. Producers Definition: They produce oxygen and food that animals need
Examples: Plants and algae
Definition: They produce oxygen and food that animals need

12. Consumers Example: Animals
Definition: They eat algae, plants, or animals.

13. Decomposers Examples: Fungi and bacteria
Definition: They breakdown dead plants and animals into useful things like minerals that enrich soil.

14. Niche Factors: a. What a species eats b. What eats a species
c. The environment the species lives in
d. Are they active during the day or at night