Answer:
Seals store oxygen in their lungs, blood and muscle. Compared to humans, seals have larger lungs because they are also larger animals, but a greater proportion of oxygen is found in the blood rather than in the lungs.
DNA replication is called semiconservative because the two resulting DNA molecules each have one new DNA strand and one old strand from the original DNA molecule.
I know somebody said the definition of dominant but if you are referring to a dominant gene (I assume so because the subjects says biology), then it is an allele that produces the same phenotype where its paired allele is identical or different.