<span>More individuals are produced each generation that can survive.
Phenotypic variation exists among individuals and the variation is heritable.
Those individuals with heritable traits better suited to the environment will survive.
<span>
When reproductive isolation occurs new species will form.</span></span>
Definition-change in a population or species over time.
A) 5
Half-life is the time it will take for a quantity to reduce to half its initial value. In this case, uranium will undergo radioactive decay, and after 700 mil years, 5 of the 10 uranium atoms will have decayed.
There are more but birds would be a bad index fossils
I hope this helps!
