Manufacturers of some medications used to treat heartburn advertise that their products shut down the acid-producing pumps in the stomach. where are these "acid-producing pumps"? in other words, which type of gastric gland cell secretes acid?

Which of the following best describes the expensive tissue hypothesis? brains require more energy, so the gut had to be reduced, and larger brains and tool use led to higher quality diets. increasing body size means that homo neanderthalensis had to include more fat in its diet. brains require more energy, so the gut had to be reduced as brains got bigger. brains require more fat, so the gastrointestinal viscera (gut) had to expand, and hands were needed to acquire more food.

The part of the eye that closes and opens to let light in is .

Original sequence mrna: cag gga gca uua mutated sequence mrna: cag uga gca uua using the amino acid codon chart, what will happen to this protein sequence if the mutation shown occurs?