Explanation:
The testes create sperm that develops in the epididymis, a coiled tube. After $exual contact, they pass via the oviducts and combine with fluids generated by the prostate gland and seminal vesicles. The sperm then proceed down the urethra to the tip of the shaft, where they are discharged into the genital canal of the female. YW:)
Development of tissue typing changed organ transplantation as
Tissue typing minimizes the chance of rejection
Explanation:
Before tissue typing the chances of rejection of organs y the body of the person needing a transplant was very high and it was a dangerous procedure with little chance of success.
Tissue typing is a process by which the sample tissue of the donor is matched with the sample tissue of the patient in need of help. This makes it viable for the person to know if the organs will be rejected or not before the actual surgery takes place and has allowed for greater successes in transplant thus.
Answer: the antigens identify the foreign invader
