Which one of the following statements accurately describes a characteristic of red blood cells?
a. they're agents of inflammation.
b. they lack hemoglobin.
c. they're convex disks with a large nucleus.
d. they transport oxygen to all the cells of the body.

The picture showed normal blood cells which are around and sickle cells which appear much longer people with sickle-cell suffer from the sickle cell anemia which is inherited diseaseit is caused by a change in gene responsible for production of hemo goblin this type of change is known as an

20 the compound al(nh3)2 has atoms of nitrogen.

In each transformation of energy , some energy what?