Phosphorus plays an important role within the structures of the body. which of the following structures is phosphorus found in?
a. bones
b. cell membranes
c. dna
d. all of the above

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.