What type of contraception is the least effective?

A. condoms
B. RU486
C. the rhythm method
D. birth control pills
E. All of these contraceptive methods are equally effective.


Answer: C

Biology & Microbiology

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Water molds have cell walls made of

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Which of the following encourages growth of

bone and soft tissues in the young?

a. ACTH b. prolactin c. oxytocin d. growth hormone e. more than one of these encourages growth of bone and soft tissues in the young

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A(n) ________ is an animal that carries a disease from one host to another

Fill in the blank(s) with correct word

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All of the following can be determined by microscopic analysis of hair except _________.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology