I need help plzz.

Which level of consumer had access to the smallest apply of energy

There are fewer than 100 naturally occurring elements in the universe, but there are millions of different unified substances. explain how this can be true.

In a population that is in hardy-weinberg equilibrium, there are two possible alleles for a certain gene, a and a. if the frequency of allele a is 0.4, what fraction of the population is heterozygous? a. 0.40 b. 0.60 c. 0.16 d. 0.48