In the peripheral nervous systems of higher vertebrates, regenerating axons are guided to their correct targets by:

This is one of the five kingdoms in the older biological succession. organisms in this kingdom are prokaryotic

How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?

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