After his journey on the hms beagle, darwin made this now-famous sketch in his notebook. which ideas does it represent?

Here are the ideas that Darwin's famous sketch in his notebook represents:
1. All species are linked to one another by common ancestry.
2. All species are connected to one another in a "family tree."
3. Species descend from other species just as naturally as children come from parents.
Darwin is the most important scientist when it comes to the theory of human evolution.

Honestly im just trying to get points i dont know the answer