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

Why do carbohydrate molecules function so well as fuel for the body?

9. technology can bring both good and bad things. building a vertical farm can increase food supplies in cities (good), but it may cause unemployment in rural areas (bad). give another example of both the good and bad sides of a technological advancement (5 noints)

How many pounds does the earth weigh?