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
Pap smear. Cells of the cervix (shown in the center) change in appearance as they progress through
Although Neandertal brain sizes fall well within the modern human range, their EQ is lower than mode
Climate change by international treaty
The impact of climate change is greater in some areas than in others
In the reaction C(s) + O2(g) CO2(g) carbon is __________.
The ras proto-oncogene encodes a signal-transduction protein that processes signals for cell divisio