1.
a air that you need to live
2.
pumps blood for the body
4.
blood that have a lot of oxygen
5.
is a relationship in which both species benefit.
6.
it different from mutualism
8.
Relationships in which one species benefits from harming
9.
is a close relationship between two species
10.
members of two different species use the same limited resource
11.
make food, oxygen, and energy
12.
are cord-like structures made of strong connective tissue that attach muscles to bones
13.
are fibrous connective tissues that attach bone to bone
14.
Sunlight is essential for photosynthesis, which is the process by which plants use water, carbon dioxide
15.
Plants need nutrients from good soil, fertilizers, or air to grow.
