Which of these is an example of asexual reproduction?

a.)new grass plants grow from grass runners that spread across a lawn.
b.)a piece of a rose stem is planted in the ground and a new rosebush grows there.
c.)the leaf of an african violet is placed on the ground and a new plant grows from it.
d.)all of the above

Pepsin is an enzyme in the stomach that breaks polypeptides into amino acids. pepsin functions best at a ph of around 1.5. what would be the most likely result if the ph of the stomach were increased to 5

Epinephrine is a hormone released from the adrenal gland of the body, most often in a stressful situation. it is known as the "fight-or-flight" hormone. one way that it causes a response in the body is to activate receptors on muscle cells. where are these cellular receptors located? a. on the cell membrane b. in the nucleus c. on the cell wall d. around the mitochondria

If assuming tasting ptc as a simple gene trait, what other genotype would you select to put in this missing genotype box that could result in this phenotype