Where do the instructions for making proteins come from?
A. mitochondria
B. the nucleus
C. smooth ER
D. rough ER

The nucleus

Explanation:

The nucleus is the "control center" of the cell, and is responsible for making proteins.

Nucleus

Explanation:

The mitochondria is responsible for energy, Smooth endoplasmicreticulum is void and so is rough ER

an organism's phenotype is the  form of a trait  that it  displays. for  flowercolor, a pea  plant  can  display  a phenotype of purple or white flowers. an organism's  genotype  is the alleles of a gene it contains. based on his data, mendel concluded that a phenotype can be  determined  by more than one  genotype.

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs