Which of the following statements regarding the digestive system is correct? a peristalsis occurs in each organ, enabling nutrients to be more easily absorbed. b wherever mechanical digestion occurs, chemical digestion also occurs. c all organs contain glands that release enzymes for chemical digestion. d the ph of each organ is the same so the food can easily move through the system.

Maria wanted to grow a fern in her backyard. acting on a suggestion from a friend, she collected brown dots from the underside of a fern's leaves and then potted them. after a few days, maria saw small fern leaves erupting from the pot. which statement explains this phenomenon? a. the fern transitioned from gametophyte generation to sporophyte generation. b. the fern grew as a result of mitosis. c. the fern transitioned from sporophyte generation to gametophyte generation. d. the fern grew to be genetically identical to its parent plant.

As a small change in a person's dna can cause a genetic disorder

In a cladogram' when does a group of organisms branch off