If a pregnancy test can detect pregnancy within two weeks after fertilization, it most likely works by:
A) detecting the hormone human chorionic gonadotropin in the woman's urine
B) detecting a rise in the woman's body temperature from 98.6 to about 99.3
C) detecting the presence of a much higher percentage of alpha brain waves during the woman's sleep cycles
D) detecting a dramatic increase in the acidity of the woman's urine

Question

Quizplus · Accepted Answer

As noted in the textbook, cell differentiation is the point at which home urine tests can assess pregnancy: The cells of the supportive structures begin secreting a detectable hormone called human chorionic gonadotropin (hcg), which shuts down further ovulation and prevents the next menstrual period.

If a Pregnancy Test Can Detect Pregnancy Within Two Weeks