Why is a mushroom considered a heterotroph?

a.) it manufactures its own food
b.) it divides by mitosis
c.)it transforms light energy into chemical energy
d.)it obtains nutrients from its environment

Students in biology are studying the macromolecules of life. they used a calorimeter to determine the calories in various types of food. once the lab was completed, the students ate the left over food samples. monica commented that in just 6 or 7 "chews" of the saltine, it was gone; nothing but a sticky paste in her mouth. elaborate on what happened chemically while chewing the saltine. include the macromolecules present.

The transport tubes for food coming down the plants are called?

Which characteristics are typical of a human population in the postindustrial stage?