What is the effect of sickle-cell anemia?
a. Blocked respiratory pathways.
b. Decreased neurological functions.
c. Inefficient oxygen transportation.
d. Susceptibility to contracting malaria.

Option C.

Inefficient oxygen transportation.

Explanation:

Sickle cell anaemia is an inheritable condition in which the red blood cells cannot carry oxygen to the organs or whole body because the red blood cells shape has been distorted and is sickle in shape. In this condition there is not enough red blood cells to carry oxygen in the blood.

Red blood cells function to transport oxygen in the blood because of the haemoglobin molecule present in them.

This can damage the organs nerves,lungs, livers spleen e.t.c

what's the question?

economic impact of malaria is estimated to cost africa $12 billion every year. this figure factors in costs of health care, absenteeism, days lost in education, decreased productivity due to brain damage from cerebral malaria, and loss of investment and tourism.