What prevents lipids from mixing with water?
a. water and lipids are both polar.
b, water and lipids are both nonpolar.
c. lipids are polar, but water is nonpolar.
d. water is polar, but lipids are nonpolar.

Which statements about a food chain are true? choose all answers that are correct. a.plants are the first living organisms in food chains on land. b. the plants in a food chain are called herbivores. c. all food chains on land begin with energy from the sun. d. carnivores in a food chain eat only plants.