Anemia is caused by a defective gene resulting in abnormal hemoglobin: a. Hemorrhagic anemia b. Aplastic Anemia c. Pernicous Anemia d. Sickle Cell Anemia

it's sickle cell anaemia the answer it's D

i would say the prokaryotic cells the prokaryotic cells are less complex, are usually found only in unicellular organisms and have more limited capabilities than eukaryotic cells.

surface mining destroys mountain tops, landscapes, forests and wildlife habitats. on top of that, it leads to soil erosion and destruction of agricultural land. the landscape changes can also disrupt river channels and streams, which leads to flooding. which, can destroy plant life and other animals as well.

explanation: