<span>The answer to the question is the k-selected species. In a k-selected species, the organism typically produces large sized offspring and has a long gestation period. This animals are mostly at the top of the food pyramid and don't have to worry about predation, so the population numbers are mostly stable. An example of a k-selected species is the elephant.</span>
<span>Two types of macromolecules: nucleic acid and protein.
Chromosomes are how the DNA is stored so they primarily contain nucleic acids. In addition to properly organize and condense the DNA, proteins are required. These include histones and other proteins.</span>