A measure of the number of particles of a substance in a given volume would be concentration. <span>In chemistry, </span>concentration<span> is the abundance of a constituent divided by the total volume of a mixture. There are a number of ways expressing it such as molarity, molality, normality, ppm, percentage and the like.</span>
An understanding of anatomy is key to the practice of health and medicine
Answer:
B
Explanation:
Proteins are made up of smaller building blocks called amino acid.
Genetic variation is an effect
