A - Ff and Ff is the answer
Sickle cell anemia is a genetic condition that distorts the shape of the hemoglobin. This reduces the capacity of the red blood cells to carry oxygen. Another effect is that the distorted red blood cells come together forming a heavy and compact collection of cells that can block the flow of blood. The sedimentation rate is increased by sickle cell anemia.
Answer:
C.Asxins cause plants to grow wider
A. An increase in the amount of acid rain can change the pH of soil in an ecosystem.
