Why is the nucleus important? A. It is useful for making cell energy.
B. It contains and protects the cell's
DNA.
C. It is the site of protein synthesis.
D. Both A and C

When creating a graph, the goes on the x axis and the goes on the y axis. a. dependent variable, independent variable b. experimental group, control group c. independent variable, dependent variable d. control group, experimental group

How is the carbon cycle related to global warming ?

Which of the following explains why a tree is often used as a model to represent the principle of common descent