Radioactive decay is measured in half-lives.
Genes are segments of deoxyribonucleic acid (DNA) that contain the code for a specific protein that functions in one or more types of cells in the body. Chromosomes are structures within cells that contain a person's genes. ... A trait is any gene-determined characteristic and is often determined by more than one gene.
Answer:
Alana put mailed 2 letters in each of the 3 mailboxes
Explanation:
<span>Mammals first appeared during the Cenozoic Era. The statement is true.</span>
The answer is
B. animal cell
