Answer:
O H20 and CH4, but not O2
Explanation:
Compounds consist of multiple elements. O2 is just two oxygen atoms, meaning two atoms from the same element.
Organ system is the answer
The correct answer of the given question above would be option D. CHROMOSOMAL POTENTIAL. A change in the frequency of alleles in a gene pool can be explained by all of the following except the chromosomal potential. <span>A change in allele frequency is more likely to produce microevolution. Hope this answer helps.</span>
It has the ability to bind itself to small amounts of acid in the blood, which helps with removing that acid before the blood’s pH changes
