A catalyst is a chemical

found in leaves

which promotes a chemical reaction

which reacts with sunlight

produced by the chloroplast

Calvin ate a candy bar, which caused his body's blood glucose levels to become unbalanced. his body responded by initiating a feedback mechanism to return his body to homeostasis. place the steps of this feedback mechanism in order, starting with the blood glucose imbalance that occurred after calvin consumed the candy bar. a) calvin's blood glucose levels decreased. b) calvin's pancreas stopped secreting insulin. c) calvin's body cells started to take up glucose and store it as glycogen. d) calvin's blood glucose levels increased. e) calvin's pancreas started secreting insulin.

Building glycogen from glucose molecules is an example of what

Methane gas created by a cows flatulence especially in a large herd is a greenhouse gas. true or false.