Answer:
We are made of primitive cells
"REPRODUCTIVE ISOLATION" needs to occur for speciation to happen.....
Answer: False
Explanation: You're supposed to have numerically more smaller units than bigger units, since a lot of these smaller units are combined to create a single larger unit.
Answer:
the type of molecule-destroying enzyme he used
Explanation:
Frederick Griffith and Oswald Avery were scientific researchers who discovered DNA. Frederick Griffith began the research and Oswald Avery continued his research in 1944 when they made the discovery of DNA. When Avery repeated Griffith's research the experimental variable in Avery's experiment was the type of molecule-destroying enzyme he used.