Climate changes cause a drought. There is no food to collect. To survive, the animals must become predators, catch and kill prey
for food. Compare and contrast the traits of each group. Which group(s) would you expect to die out because of their mutations in this new environment?
Peristalsis is simply a series of muscle contractions, these contractions occur in the digestive tract
Peristalsis is also observed in the tubes that connect the kidneys to the bladder
Peristalsis is an automatic and important process which moves: food through the digestive system, urine from the kidneys into the bladder and bile from the gallbladder into the duodenum
Peristalsis is a normal function of the body and can sometimes be felt in the belly (abdomen) as gas moves along
