The answer is K-selected.
<span>The population size of K-selected species is fairly constant
in time, unlike the population size of r-selected species. r-selected species
are usually bellow carrying capacity and the population size is density
independent. On the contrary, K-selected species are usually near or at
carrying capacity and the population size is density dependent. It can be concluded that sperm whales have K-selected populations, since they </span><span>maintain their populations close to carrying capacity.</span>
Then, we can say the genotype of both the parents was heteroxenous... It is because, o is recessive and can dominant only in presence of other recessive gene.
So, both parents blood group genotype would be: Ib Io