Answer: Option B) Antigens
Blood typing is based on the presence of proteins known as antigens on the outer surface of the red blood cell plasma membrane.
Explanation:
Blood groups A, B, AB, and O are determined based on the antigen-antibody reactions between donor and recipient bloods.
For instance,
- Blood type A has antigen A on its plasma membrane
- Blood type B has antigen B on its plasma membrane
- Blood type AB has both antigen A and antigen B on its plasma membrane
- while blood type O has neither antigen A nor B on its plasma membrane
So, antigens is the answer
Intramembranous Ossification is the formation of bone from within fibrous membranes.
The other method of bone formation, Endochondral Ossification, is the formation of bone from preexisting hyaline cartilage models.
Explanation:
As a diagnostic radiographer you'll use x-ray and ultrasound machines, as well as other forms of imaging technology, to look inside a patient's body and find out what's causing their illness. Working in a range of hospital departments, you'll acquire images to help with the diagnosis of illnesses and injuries.
Answer:
The cornea
Explanation:
The cornea is the only part of a human body that has no blood supply; it gets oxygen directly through the air.
