The frequency of alleles in a population that is in Hardy-Weinberg equilibrium 1)changes in each successive generation.
2)is less important than the frequency of genotypes.
3)shows evidence of the process of natural selection.
4)remains the same over several generations.
The answer is either B or D

an organism's phenotype is the  form of a trait  that it  displays. for  flowercolor, a pea  plant  can  display  a phenotype of purple or white flowers. an organism's  genotype  is the alleles of a gene it contains. based on his data, mendel concluded that a phenotype can be  determined  by more than one  genotype.

b. lithosphere, asthenosphere, mesosphere   is the answer most likely

kelp are large brown algae that live in cool, relatively shallow waters close to the shore. they grow in dense groupings much like a forest on land. these underwater towers of kelp provide food and shelter for thousands of fish, invertebrates, and marine mammal species.

e) all of the above