The amount of energy available from foods is known as
a. atp.
b. carbohydrates.
c. calories.
d. sugars.

Contrast how pollination is different among gymnosperms and angiosperms.

The activity of the modern sample is 1.10 bq . how long does that measurement take?

What is it called when part of a cell membrane closes around a molecule to allow the molecule to enter the cell? a. passive transport b.diffusion c. endocytosis d. exocytosisc. endocytosis