What is one role that lipids play in the body?
a: they make up the contracting structures of muscles.
b: they make up structural parts of cell membranes.
c: they provide a quick source of energy for cells.
d: they store coded information about heredity.

What type of genetic drift would be simulated if all the beans that were not selected died out?

Based on the data in your tables, did the light-colored moths have a higher or lower survival rate after the industrial revolution?

What sentence best supports the statement that hormones are involved in the regulation of homeostasis? a. the hormone erythropoeitin increases the production of red blood cells when oxygen levels are low. b. the hormone oxytocin promotes labor contractions of the uterus during childbirth. c. the hormone melatonin induces sleep and its production is slowed by exposure to light. d. the hormone cortisol suppresses the immune system and is produced when the body is under stress.