Answer:
Natural selection.
Explanation:
Natural selection was the theory "survival of the fittest"
Answer:
I looked it up ↘️⬇️↙️
Explanation:
scientific law is the description of an observed phenomenon. It doesn't explain why the phenomenon exists or what causes it.
<span>A
gradual change in phenotype over a geographical area is called a cline (or clinal variation).</span>
A
cline is gradual phenotypic (and/or genetic) differences over a geographical
area. It usually happens as a result of the change of allele frequencies within
the gene pool.
