How did you grow from one cell to the trillions of cells that make you today?

Ageologist determines that a sample of a mineral cant be scratched by a steel nail but can be scratched by a masonry drill bit based on this information the sample mineral has to be softer than

There are fewer than 100 naturally occurring elements in the universe, but there are millions of different unified substances. explain how this can be true.

The ultimate purpose of respiration: a. inhale 02 and exhale co2 b. place oxygen in the lungs c. place oxygen in the blood d. deliver oxygen to every blood cell