What is the evidence of variation when individuals in a population or group differ in some trait of interest

When the more dominat trait starts to show up in most of the population while keeping the specis the same. This can be very benifitial to the population or harmful depending on the trait that is getting passed down.

Explanation:

with pass cost = $25

without pass cost = 3x number of days going the the class

the electromagnetic energy from the sun arrives in the form of visible and invisible light.