Cholesterol mixes with phospholipids in a biomembrane because cholesterol molecules are A. amphipathic. B. steroid derivatives. C. entirely hydrophobic. D. phospholipid derivatives.

Q: a: in sexually reproducing animals, once fertilization of the egg takes place, the exists as a single cell until cell division begins

Match the pollutants. 1. a chlorofluorocarbon smoke 2. a biodegradable organophosphate insecticide freon 3. particle pollution paint 4. hazardous waste monoxide 5. carbon is completely burned malathion 6. carbon is incompletely burned dioxide

What do your cells need to live? a. carbon dioxide b. carbon c. air d. oxygen