Some common issues of digestive health include heartburn, cancer, irritable bowel syndrome, and lactose intolerance.
<span>The gland which signals other glands to secrete hormones is the pituitary gland.</span>
<span>A substance that is made of atoms of more than one type bound together is called a <span><u>compound</u>.
</span>A compound is a</span><span> substance consisting of atoms or ions of two or more different elements in definite proportions joined by chemical bonds into a molecule. </span><span>
</span>
Explanation:
Silent mutations occur when the change of a single DNA nucleotide within a protein-coding portion of a gene does not affect the sequence of amino acids that make up the gene's protein.
It tells you that they descended from a common ancestor.
