We know that 
, where 
is density, 
is mass, and 
is volume.
Substitute in the values we know and solve:
Try sugar. I hope this helps!!!!!
Answer:
Genes
Explanation:
The genes are the basic unit of hereditary which are a part of chromosomes that are passed from parents to their offspring.
Genes are responsible for the propagation of hereditary features. They are usually located on the chromosome.
Genes are made up of protein molecules.
Each parent passes down a copy of their gene which are inherited by the offspring and they determine a character state.
They generally make up the genotype.
Answer:
C
Explanation:
because valence electrons are located at the last energy level
Mass number = number of protons + number of neutrons
mass number= 8 + 7= 15 ---> the answer is B.
