Why do o2 and co2 pass through the plasma membrane? a. they are nonpolar and soluble. b. they are facilitated by protein. c. they are "pumped" through. d. they undergo pinocytosis.

Ryan rears sheep for their wool. recently the quantity of wool that ryan gets has diminished. this is because the new sheep are not that wooly. ryan should add which nutrient to their feed so that the sheep becomes more wooly? a.cornb.ironc.cottonseedd. vitamin a

Could someone me with number one you

Idont understand by supporting the plant and holding the leaves up to the light. question 3 options: tap or fibrous root flower petals herbaceous or wood stems leaves with stomata