What is one function of the pyloric sphincter?

a. controls the release of pancreatic secretions into the small intenstine
b. prevents stomach contents from backing up into the esophagus
c. controls the passage of chyme from the stomach into the small intestine
d. prevents the backward movement of feces from the large intestine into the small intestine

What is mitosis and how does it affect change

The phlogiston theory in the 17th century attempted to explain burning. the theory stated that combustable objects contained a material called phlogiston, a substance without mass, color, odor, etc. after objects burned, the objects were dephlogistonated and were then in their true form. the phlogiston theory was accepted until the 18th century, when lavoisier proved that combustion requires a gas that has mass. phlogiston is considered a) to be scientific knowledge b) not to be scientific knowledge c) to be proven by scientific method d) to be accepted in the modern scientific community

Asmall population of chimpanzees lives in a habitat thant undergoes no change for a long period of time. how will genetic drift affect this population