00:01
Which of these is a misconception about natural selection.
00:04
It involves differential reproductive success, rates that are favoured depend on the current environment, it acts on heritable variation in the population, it occurs when individuals evolve, or it may occur as a result of competition among individuals.
00:22
So natural selection is the process in which some traits are more favoured than others.
00:27
So what happens is you have a population with heritable variation, which means they differ, and the ways they differ are heritable.
00:40
So the offspring will resemble the parents.
00:43
Natural selection means that some of those individuals are better suited to the environment than others.
00:50
So, bitter individuals, and this is entirely dependent on the environment, have more offspring on average.
00:59
On average is important.
01:00
Because it is all probability -based, but on average, an organism that is fitter for its environment is going to be better at surviving and reproducing.
01:12
And because the variation is heritable, these offspring inherit the adaptive traits.
01:20
And so over the generations, these adaptive traits become more and more common, and that is evolution, the change in allele frequencies of a population over the generations.
01:32
So a, absolutely true.
01:34
Differential reproductive success means this.
01:38
Some individuals are having more offspring than others.
01:42
B, also true.
01:44
What defines whether or not a trait is adaptive...