Which statement is true?
a. tissues are made up of organs,
b. organs are made up of body systems,
c. body systems are made up of organs,
d. specialized cells are made up of tissues,

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