Bacteria in your intestines can spread in your body and attaching
Answer:
13.7 billion years old good luck
The first level of organization are living cells
Cell Hypothesis is one of the fundamental standards of science. Credit for the plan of this hypothesis is given to German researchers Theodor Schwann, Matthias Schleiden, and Rudolph Virchow.
Cells need nutrition in order to get the required elements. Which specific foods provide specific elements, and what do those elements do in the cell?
...
The major macromolecules are:
carbohydrates and lipids - made of carbon, hydrogen, and water.
proteins - provide nitrogen and sulfur.
nucleic acids - provide phosphate.
