Which of the following muscle tissues is not striated and is responsible for involuntary peristalsis (wave-like contractions), which moves food through the gastrointestinal tract.

all of the above
skeletal
smooth
cardiac

Smooth muscle.

Explanation:

Smooth muscles are muscles non striated and involuntary muscles that are found in the walls of digestive organs and help to move food along the digestive system through peristalsis. The help to regulate flow of food in the system. Smooth muscles also function in relaxing and contracting the walls of arteries, ducts ,uterus e.t.c.

the atmospheric gas that forms a mild acid when dissolved in water is called carbon dioxide. the correct answer is a. 2.) chemical weathering would cause an inscription on a marble headstone to become harder and harder to read over time.