Meat tenderizers contain protein enzymes, how do these enzymes affect meat?

Regarding most of the narrator’s story, which word best describes the tone?

Idon’t know the answer and i’ve been stuck on it for a while now skskskskks

Why did mendel use pea plants in his experiments? a. they have no alleles. b. they are haploid organisms. c. they reproduce quickly. d. they are all male.