Which layer of the digestive wall is responsible for most of its movement?
a. submucosa
b. muscularis mucosa
c. muscularius externa
d. both muscularis mucosa and external

B)  muscularis mucosa

Explanation:

 The digestive wall which is responsible for most of its movement are muscularis mucosa as, the muscularis mucosa is the outer layer and it is the thin layer which is responsible for generating the movement in smooth muscles. Basically, smooth muscle are responsible for generating the move and fold which help in increasing absorptive mucosa area. And it is supported by the thin layer of the connective tissues.

faster

explanation:

like how hot it is

answer:

None of them! It's just a virus.

Explanation:

Virus is an infective agent that typically consists of a nucleic acid molecule in a protein coat, is too small to be seen by light microscopy, and is able to multiply only within the living cells of a host.