What is a body part spelled forwards and backwards?

Which of the following is a true statement? a. the male sex hormone is called estrogen. b. the female sex hormone is called testosterone. c. both sexes manufacture some amount of the sex hormone associated with the opposite sex. d. only males secrete testosterone and only females secrete estrogen

Based on the chart, what are the three most effective methods to protect against pregnancy?

Why would one lymph node in the neck be swollen and not the other? what causes them to swell?