The inability to start a pregnancy after having unprotected vaginal intercourse for more than a year or the inability to stay pregnant for the full length of a normal pregnancy is?

How does the endocrine system affect the body's functions? o o o o it secretes enzymes directly into the bloodstream. it secretes hormones directly into the bloodstream. it secretes enzymes through ducts to the surface of organs. it secretes hormones through ducts to the surface of organs.

Meg is moderately active and completes 30minutes of daily activity above the baseline level. based on the chart, which activity will not increase megs physical fitness?

Which of the following human diseases is caused by a virus that requires reverse transcriptase to transcribe its genome inside the host cell? a) herpesb) aidsc) smallpoxd) influenza