An autotroph is an organism that can produce its own food.
There are many internal factors which living organisms respond to, two of them are temperature and hormone levels. Organisms respond to internal factors in order to stay healthy and survive. The internal environment of living organisms has to be kept relatively constant, this is constancy is achieved through the process of homeostasis.
Answer:
the presence of cell structures in the cell
Explanation:
<em>If you do not know the reasoning behind this, you may want to read the explanation assignment the teacher adds, or do more research, look at notes, or pay attention during class :)</em>
Muscle, hair color, height are the 3 most common physical traits affected by the environment.
