What type of contraception is the least effective?
A. RU486
B. the rhythm method
C. condoms
D. birth control pills
E. All of these contraceptive methods are equally effective.
B. the rhythm method
You might also like to view...
What does the globular stage of plant embryo development give rise to?
A. a heart-shaped dicot embryo B. the suspensor of the germinating seed C. a double monocot embryo D. the monocot scutellum E. the rhizoid of Fucus
At least 60% of the ____ most valuable fish species are overfished or fished to the limit
a. 30. b. 100. c. 150. d. 200. e. 400
By examining a karyotype, it is possible to determine
A) which of two related plant forms is a gametophyte, and which is a sporophyte. B) the sex of an animal. C) the age of a fungus. D) A and B only E) A, B, and C
Treatment with glucocorticoids to suppress type IV hypersensitivity may result in
A. acquired immunodeficiency. B. anaphylaxis. C. autoimmune disease. D. DiGeorge syndrome. E. primary immunodeficiency.