00:01
Okay, so this question talks about evolution by way of natural selection.
00:06
So natural selection is basically this theory proposed by charles darwin that states that individuals have differing fitnesses.
00:14
So in this example, these drafts have different necks, which affect their ability to reach these trees and ultimately gain food.
00:22
And the theory proposed by darwin is that those who have greater relative fitness compared to others will be able to see.
00:30
Survive and pass on their genes to their offspring, while those who are less fit, have less relative fitness, will die and not be able to pass on their genes.
00:42
So with that in mind, we'll go down these statements and see which ones are true and which ones aren't true regarding evolution by natural selection.
00:52
So the first says a variation exists within a population.
00:55
And obviously this is true.
00:57
In this case, giraffes have different necks, but there's variations in all different types of phenotypes.
01:02
So that is true.
01:05
Second, it says organisms compete for resources.
01:08
And this is true.
01:10
Organisms in this, so in this case, shavats are competing for food, but that is the whole basis for fitness...