The independent factor is typically the unit on the x axis, while the dependent is on the y axis. An Example would be miles per hour, miles would be graphed on the y axis, and hours on the x axis.
Answer:
The reproductive system.
Explanation:
Without the reproductive system, humans are not able to reproduce meaning the human species would go extinct. With the reproductive system, humans are able to create more humans, in this way humans do not go extinct.
