What is the chemical formula for a molecule containing six hydrogen, three oxygens and four carbons? a) 4c6h2o b) 2c2h3o c) c4h5o3 d) c4h6o3

What is the next step in muscle contraction after the actin changes shape? (apex)

Which represents the cross between parent plants if one is heterozygous for yellow-colored pods and the other is homozygous for green-colored pods? yy  ´    ´    ´    ´  yy

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.