is held constant throughout the experiment.
the control group is used as a foundation for your experiment so you know what changes what and how to manipulate the independent variable.
D.) "Pepsin" <span>speeds up the breakdown of proteins in food
Hope this helps!</span>
I believe
1.b
2.c
3.b
4.d
5.a
6.b
7.b
8.c
9.d
10.b
Cells know how to differentiate through a process called gene expression. It’s a specific combination of genes that are turned on and off.
