which of the following hormones helps the immune system fight off infections?

A- PTH
B- thymosine
C- aldosterone
D- GHRH
E- GnRH

You've posted several biology questions.

Have you checked your book for these answers?

Yes i have and its 50/50

im not sure on some questions if it is one or the other.

Which ones are you considering for this question?

You'll probably get more help here if you post your ideas.

well i think its either B or E

It looks as both of them are correct.

http://www.google.com/search?source=ig&hl=en&rlz=1G1GGLQ_ENUS374&q=GnRH+immune+system

http://www.google.com/search?hl=en&rlz=1G1GGLQ_ENUS374&ie=ISO-8859-1&q=thymosine+immune+system+fight+off+infections

okay i cant find the answer i read hrough any sites and can not find which one.

The hormone that helps the immune system fight off infections is thymosin. To determine the correct answer, we will need to understand the function of each hormone listed.

A - PTH (Parathyroid hormone) is involved in the regulation of calcium and phosphate levels in the body, and it does not directly impact the immune system.

B - Thymosin is produced by the thymus gland, and it plays a crucial role in the development and maturation of T-cells, which are essential for the functioning of the immune system.

C - Aldosterone is a hormone produced by the adrenal glands and is primarily involved in regulating salt and water balance in the body. It does not directly affect the immune system.

D - GHRH (Growth Hormone-Releasing Hormone) is responsible for stimulating the release of growth hormone from the pituitary gland, which plays a role in growth and development. It does not have a direct impact on the immune system.

E - GnRH (Gonadotropin-Releasing Hormone) is involved in regulating reproductive functions and does not directly support the immune system.

Therefore, the correct answer is B - Thymosine.