It was like memory t- cells which basically are the brains of the immune system,this way if a disease strikes,the next time it strikes the immune system knows what to do and what to protect like vital organs a virus may attack
<span><span>The answer is Human papillomavirus (HPV).
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Among the different sexually transmitted infections (STI), HPV is considered as the most common STI. It can be passed on through intercourse and other sexual activities with an infected person. It is known to cause cervical cancers. </span></span>
Heart disease is a very rare disease.... False.
Answer: During sexual intercouarse a males ejaculation fertilizes the egg and is released. Once the egg travles to the uterus. It will usually implant in endometrium. From there a hormone called human chorionic gonadotropin begins to produce in the uturus. This is the hormone that a pregnancy test measures. It prevents the uterine lining from being shed, so the woman does not have a period. Resulting in pregnancy.
