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
Examples of different cell types in humans
Ovulation
Temperature cycles for 24 hours
Global Climate Change
Prepare for weekend plans when hours feel like minutes
(left) Urine sample from an unaffected person does not change color upon exposure to air. (right) Ur