Answer:
B. mutations
Explanation
I believe this is the answer because even though mutations can be bad, there are also good as they can provide genetic variation to a population, which can result in the trait being passed to the offspring.
Answer:
Explanation:
Diagnosis - A disease must be diagnose this can be done by group of expertise. They diagnose one to two persons with the disease asking them questions about their state of health, how they were expose to the illness. This enable them have enough evidence as regarding the disease.
Signs and symptoms - signs are traces to a disease it is determined by an experts while the symptoms are the abnormalities or changes that indicate the disease.
Damage in the bone marrow, called as aplastic anemia leads to lower production of both red and white blood cells, causing oxysgen starvation and infection.
Platelets are also reduced.
South African people are vaccinated with Yellow fever. First, SA is strict in the implementation proof of vaccination in travelers coming in the country. The vaccination card must show vaccination at least ten days prior to travel. This is to prevent reintroduction of the disease to SA people. Second, In the list of Center for Disease Control, South Africa is not included in the countries with an endemic Yellow fever which means that the disease is wiped out if not controlled through vaccination.
