Answer:
the allele frequency can not be calculated
Explanation:
the 50 people aren't all related, so they don't have the same genepool
<span>Cretaceous
</span>Angiosperms evolved during the late Cretaceous<span> Period, about 125-100 million years ago.</span>
This is called Forced Speciation
Answer:
The earth system is itself an integrated system, but it can be subdivided into four main components, sub-systems or spheres: the geosphere, atmosphere, hydrosphere and biosphere. ... The atmosphere receives energy from solar radiation which warms the earth's surface and is re-emitted and conducted to the atmosphere.
Yes that is correct Force :D