1.
Organisms that can produce fertile offspring
2.
Processes necessary for survival
3.
Obtaining Nutrients from food
4.
Molecule used to store energy
5.
Organism that consumes only plants
6.
Organism that consumes only animals
7.
Organism that consumes plant and animals
8.
Organism that breaks down decaying matter
9.
The interactions between organisms
10.
Organism that can produce its own energy
11.
Organism that consumes others for energy
12.
Species that is necessary for ecosystem
13.
Number of individuals of a certain species
14.
The interactions of organisms and their environment
15.
Factors that determine how large a population can grow
16.
The maximum population size for a species
17.
Trait that helps an organism survive
18.
Physical characteristic
