The whale has a pelvic bone but no legs attached, this is an example of: a) homologous
b) vestigial
c) dichotomous
d) fossilized

What is the name for a substance formed in a chemical reaction

Where does the esophagus lead to in a frog?

Which of the following statements is true regarding a basic amino acid? a.) the hydrophilic r group of a basic amino acid will be located on the interior of a protein b.) the positively charged r group of a basic amino acid could bind dna c.) the r group of a basic amino acid would only be able to form covalent bonds with other molecules d.) a basic amino acid would be considered both polar and hydrophobic e.) all of the above