Answer:
Inherited a resistance to malaria
Explanation:
Errol's father carries two recessive genes for sickle-cell anemia, and Errol's mother carries two normal dominant genes. Therefore, Errol has inherited a resistance to malaria from his parents.
Errol will have a heterozygous genotype (AS). Scientifically, individuals that a carriers of the sickle cell allele have been reported to be resistant to malaria causing protozoa called plasmodium unlike the homozygous dominant allele AA which is susceptible to malaria infection or the recessive allele SS which causes sickle cell disease.
Answer:
B. functional combatant commands
Explanation:
The functional combatant commands of the United States military is comprised of the U.S. Transportation Command, U.S. Special Operations Command, and U.S. Strategic Command.
The answer is C their advancements in farming and high tech equipment
The best definition of psychology is the study of mental activity and behavior, which are based on brain processes