1.
Something that is alive or used to be alive
2.
Something that has never been alive
3.
The smallest unit of life
4.
Any living thing that eats, grows reproduces, makes waste, and dies
5.
Mosquitos and humans have this kind of relationship
6.
Physical differences between members of a species
7.
Variations that help a species survive
8.
All interactions between biotic and abiotic factors in an area
9.
All populations of different species in an area
10.
A herd of elephants is an example of this level of organization
11.
Relationship where one organism benefits and the other is not affected
12.
Bees and flowers have this kind of symbiotic relationship
13.
Relationship where one organism kills and eats another
14.
When two organisms both need the same resource
15.
Relationship between two organisms where at least one of them benefits
