Answer:
Cell theory
Explanation:
Also known as the cell membrane.
of every ten people struck by lightning, nine will survive and tell the tale.
Answer: Base pairs occur when nitrogenous bases make hydrogen bonds with each other.
Explanation: Each base has a specific partner: guanine with cytosine, adenine with thymine (in DNA), The hydrogen bonds are weak allowing it to "unzip"
Fermentation reactions generally occur under conditions of low oxygen concentrations.
