Blood type a- would give which of the following results?
(a) agglutination with anti-a antibodies and agglutination with anti-rh antibodies.
(b) agglutination with anti-a antibodies.
(c) agglutination with anti-rh antibodies and agglutination with anti-b antibodies.
(d) agglutination with anti-rh antibodies agglutination with anti-b antibodies

(B) agglutination with anti-A antibodies.

Explanation:

ABO blood type is based on two types of antigens: A and B antigens. The anti-A antibodies react with antigen A while anti-B antibodies react with antigen B.  

Blood type A has antigen A on the surface of its red blood cells and anti B antibodies in its plasma. Due to the presence of antigen A on its red blood cells, the blood type A shows agglutination with anti A antibodies.  

the endocrine system secretes hormones into blood and other body fluids. these chemicals are important for metabolism, growth, water and mineral balance, and the response to stress. hormones provide feedback to the brain to affect neural processing. reproductive hormones affect the development of the nervous system.