Yy x Yy yields 25%YY 50% Yy and 25% yy which is 1:2:1 (YY:Yy:yy)
Answer: Function
Explanation: The reason some objects or a process that occurred in a system that developed through natural selection.
+4 is the answer
hope it helps :P
Cause earth orbits around the sun in a year and we have 24 hours in a day