1. Which of the following is an example of a natural product?
A. water
C. ascorbic acid
B. table salt
D. atmospheric nitrogen

What is the name of the type of cell division that occurs in the prokaryotic cell cycle

What does polymerase chain reaction (pcr) do? o a. separates dna fragments by size o b. cuts a dna sample into fragments o c. provides an overall picture of a person's chromosomes o d. makes more copies of a sample of dna

Analyze how the four requirements for life were identified by scientists