Help please?.

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.

Which statement is a physical property? becomes moldy quicklyeasy to digestconducts electricity poorlydoes not burn

Describe your dna model. which part do the straws represent? the pushpins? the paper clips and the black dots you made with the marker?