A lava flow it the spread of lava that pours out of a volcano
Answer:
The answer is B.
Explanation:
Regarding the situation explained in the question that "African Americans are not affected by the malaria disease because of a specific genetic trait that they possess and that trait provides them with protection" can be explained by the answer given in option B.
Being heterozygous, meaning possessing a dominant and a recessive allele regarding that genetic trait, in terms of sickle cell trait which is a gene that causes the individual's blood cells to be sickle shaped and balanced polymorphism which means carrying two different versions of a gene is an argument that is enough to prove that the above statement is incorrect because it means they have blood cells that can be affected by the malaria disease.
I hope this answer helps.
Air masses that are formed over land are called maritime tropical air mass
Answer:
It is important to use hand sanitizer and wash your hands in a science laboratory, because the chemicals we are exposed to need to be gotten rid of so that we can maintain a healthy and clean environment, and keep each other safe by limiting the spread of our germs... Plus, corona virus.
I'm not sure if this would help but this is what I would say I guess.