Some limestones result from chemical reactions in sea water. true false

The oxidizing agent our bodies use to obtain energy from food is oxygen (from the air). if you breathe 15 times a minute (at rest), taking in and exhaling 0.5 l of air with each breath, what volume of air do you breathe each day? air is 21% oxygen by volume. what volume of oxygen do you breathe each day?

Which codon is the code for the amino acid histidine (his)?

Suppose you were the commissioner of corrections for your state. which correctional activities might come within your domain? which mostly would not