Consider the overall shape of these cells.
Which geometric solid is the best model for these cells?
O
A. A flat disk
O
B. A cube
O
C. A square pyramid
O
D. A sphere

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