D is the correct answer :)
Answer: billions of types of proteins
Answer:
its too long which one you want
Explanation:
Say any one question answer!!!
An experiment or survey must be controlled in order to receive accurate results.
In an experimental group, the independent variable is changed. But in the control group, the independent variable stays the same.
Answer:
I can't see what it says at the top
Mabye you could re upload it and see if you can get what it says up top. I would love to help.