The stomach is a highly acidic environment. Once food leaves the stomach, it enters the small intestine, where it is neutralized by sodium bicarbonate. Where do you think pepsin and trypsin are most active? Explain

The serengeti plains are part of the african savanna ecosystem and are home to a variety of different species of plants and animals. the serengeti plains experience a seven-month period of seasonal drought each year, during which the ecosystem receives only four inches of rain and the availability of some resources becomes very scarce. which type of limiting factors does the seasonal drought in the serengeti plains affect?