C. In radiometric dating, scientists place samples of a fossil in certain liquids until the samples dissolve. The rate at which they dissolve indicates the age of the fossil.
The answer is Gene a gene is a unit of heredity that is transferred from a parent two Offspring and is held to determine some characteristic of their offspring .
Proteins are made of hundreds and thousands of polymers called Amino Acid which are attached with each other in long chains. There are 20 different types of amino acids that make up a protein