In humans, the __________ signals the onset of ovulation within 12 to 24 hours.
a. change in the cervical mucus to white and sticky
b. LH surge
c. onset of bleeding
d. sudden increase in sexual interest
Question 2
If a woman keeps track of her menstrual cycles and finds that the shortest was 24 days and the longest was 32 days, what is the fertile (unsafe) period to avoid sexual intercourse according to the calendar method?
a. day 14 plus or minus 2
b. day 6 to day 21
c. day 7 to day 22
d. day 20 to day 28
Photograph of the flea that transmits Yersinia pestis to cause bubonic plague, called the oriental r
Men and women work the same number of hours a week, but men spend more time on paid work, and women ...
The direction of signals conducted orthodromically through a typical multipolar neuron.
Climate Change in East Asia
Observed change in surface temperature from 1901 to 2012
Mutations in posterior Hox genes (HOXD13 in this case) in humans