What are mating systems? a. Threatening behaviors that animals use to gain control over other animals.
b. Chemical released by one animal that affects the behavior of other animals of the same species.
c. Behavior patterns that are related to how animals reproduce.
d. Behaviors related to the movement of animals from one place to another and back again.

Which of the following descriptions of proteins are true? i. proteins can have different sequences of amino acids. ii. proteins can have different shapes. iii. proteins can have different numbers of amino acids. a. only i and ii are true. b. only ii and iii are true. c. only i and iii are true. d. i and ii and iii are all true. e. none are true statements

Which statement about the pancreas is not true? a. it is an endocrine organ in the abdomen. b. it release chemicals into the digestive system. c. it releases insulin to increase glucose levels. d. it release hormones into the bloodstream.

Diffusion and osmosis are forms of passive transport