Why is the nucleus important?
osis
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
etc.)

B

Explanation:

The nucleus is the most important organelle in the cell. It contains the genetic material, the DNA, which is responsible for controlling and directing all the activities of the cell. Hope this helps :)

B

Explanation:

The nucleus function is key to a cell’s normal survival.

b.   jim crow laws were enacted in northern states.

most people now work in jobs where they do one  kind  of work; they are carpenters, bankers, cooks, mechanics, and so forth. likewise, most  businesses produce  only certainkinds  of  goods  or  services, such as cars, tacos, or gardening  services. this feature of  production  is known as specialization.