At the beginning of the night, the moon is low in the sky. Later in the night, it is high in the sky. Explain why the moon appea
rs to move in the sky. a. Earth is revolving the sun.
b. Earth is rotating in space.
c. The moon is rotating on its axis.
d. The moon is moving toward Earth.
<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.
