What is the name for process in which organisms best adapted to their environment surivive?

The process in which organisms best adapted to their environment survive is called natural selection.

Here's a breakdown:

* Natural selection is a key mechanism of evolution.

* It is the process by which individuals with traits better suited to their environment are more likely to survive, reproduce, and pass those advantageous traits to their offspring.

* This leads to a gradual change in the population over time, as the less well-adapted individuals are less likely to survive and reproduce.

Let me know if you have any other questions about natural selection!