Which statement best explains the relationship between hbs allele frequency and malaria endemicity in africa? when an area is malaria free, the hbs allele frequency is between 0 and 2.02. when an area is holoendemic, the hbs allele frequency is between 0.52 and 4.04. when an area is malaria free, the hbs allele frequency is between 12.64 and 18.18. when an area is holoendemic, the hbs allele frequency is between 0 and 0.51.

When an area is holoendemic, the HbS allele frequency is between 0.52 and 4.04.

The answer is; When an area is holoendemic, the HbS allele frequency is between 0.52 and 4.04

Holoendemicity means that almost all individuals in a population are infected by a disease or pathogen (in this case Malaria) at one point in their lives. HbS allele is the sickle cell hemoglobin allele that provides immunity to malaria. Therefore, natural selection will favor the population with HbS allele in a Malaria holoendemic region. The HbS allele frequency in this population is expected to be high.

as the gila monster consumes the eggs or young of the desert cottontail and gambel's quail, thus its main food supply is only accessible for a restricted time duration every year. however, for this, the gila monsters exhibit three adaptations, which elevate their survival rate in the desert condition.  

first, is that they possess huge bodies, and can consume greater concentrations of food during a small period. secondly, they require to feed infrequently as they can accumulate fat in their tails. ultimately, their rate of metabolism is very low, so that they can burn their reservoirs of fat gradually.  

c.           is the correct answer