According to Darwin's descent with modification, organisms A. Do not change over time

B. Can exist in only one particular geographic location
C. Give birth to similar organisms that may be slightly different.

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?

Explain the significance of thesaurus geographicus

What's the waste product of electrons and pyruvate combining in fermentation?