Johnny is still working on his experiment to test how type of fertilizer affects plant height. What is the dependent variable? A) plant height

B) number of leaves on the plant

C) type of fertilizer

D) amount of water given to the plant

Sea stars, sea urchins, sand dollars, and brittle stars are all memeber of a group, what is the common name of the group they are all in

During the process of blank and molecules such as a glucose must use a protein channel to cross through a cell membrane

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