1859 - Natural Selection - Charles Darwin wrote “On the Origin of Species by Means of Natural Selection, or the Preservation of Favored Races in the Struggle for Life
1865 - Heredity Transmitted in Units - Gregor Mendel’s experiments on peas demonstrate that heredity is transmitted in discrete units. The understanding that genes remain distinct entities even if the characteristics of parents appear to blend in their children explains how natural selection could work and provides support for Darwin’s proposal.
1869 - DNA Isolated - Frederick Miescher isolates DNA from cells for the first time and calls it “nuclein
i think any of will work
I think it is either A or D
hope this helps
4 .......................................................... that's the answer
<span>Answer: the line dividing democratic and communist countries in Europe. The term was used to name the ideological, political and sometimes physical borders between Western (Democratic) nations in Europe and Eastern (communist) nations in Europe, after the II World War. </span>