1.
Nonliving parts of the environment such as soil, water, sunlight.
A. 
B. 
C. 
D. 
2.
An organism that uses light energy to make its own food.
A. 
B. 
C. 
D. 
3.
All the living things in an environment such as bacteria, plants, and animals.
A. 
B. 
C. 
D. 
4.
A subdivision of the environment that includes all living and nonliving portions of the planet.
A. 
B. 
C. 
D. 
5.
An organism that survives by eating animals.
A. 
B. 
C. 
D. 
6.
The largest population of any single species an area can hold that is determined by the available energy, water, oxygen and minerals available as well as by the interaction of organisms (food supply and competition).
A. 
B. 
C. 
D. 
7.
All the different populations that live and interact in an environment.
A. 
B. 
C. 
D. 
8.
Struggle between organism for the same resources. This keeps the size of a species population in check.
A. 
B. 
C. 
D. 
9.
Another name for heterotroph; An organism that obtains its energy from producers.
A. 
B. 
C. 
D. 
10.
An organism that consumes dead organisms and organic waste, example –
bacteria, fungus
A. 
B. 
C. 
D. 
11.
The process by which one community is replaced by another; bedrock - lichens - mosses- grasses - trees and shrubs - forest
A. 
B. 
C. 
D. 
12.
Study of how living things interact with one another and the environment.
A. 
B. 
C. 
D. 
13.
A diagram that shows how energy moves through the ecosystem (producer,
consumers, decomposer)
A. 
B. 
C. 
D. 
14.
A straight line representation that identifies specific feeding
relationships between prey and predator.
A. 
B. 
C. 
D. 
15.
A representation of interconnected food chains that show more complex feeding relationships between producers, consumers, and decomposers.
A. 
B. 
C. 
D. 
16.
The place where an animal or plant lives - fields, oceans, forests, streams, deserts.
A. 
B. 
C. 
D. 
17.
An organism that eats only plants
A. 
B. 
C. 
D. 
18.
Organisms that cannot make their own food (consumer)
A. 
B. 
C. 
D. 
19.
Food and or home for a parasite.
A. 
B. 
C. 
D. 
20.
The specific role played by an organism in the ecosystem. If there is more than one species in the same role there is competition and a species will be eliminated.
A. 
B. 
C. 
D. 
21.
An organism that survives by living and feeding on other organisms, but rarely kill them.
A. 
B. 
C. 
D. 
22.
All the individual of a single species living in an area. Ants in an any hill.
A. 
B. 
C. 
D. 
23.
An animal that hunts and kills other animals for food which limits the growth of a population.
A. 
B. 
C. 
D. 
24.
An animal that is hunted and killed by other animals
A. 
B. 
C. 
D. 
25.
An organism that produces their own food; example green
plants
A. 
B. 
C. 
D.