Intrauterine devices (IUD) work by ____

a. causing low-grade inflammation and prompting the release of white blood cells, thus killing the egg and sperm
b. causing low-grade scarring, which blocks the egg from traveling down the fallopian tube
c. creating a physical barrier so that the sperm can not access the egg
d. secreting small amounts of spermicide to kill "invading" sperm


ANS: A

Interdisciplinary Studies

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

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Interdisciplinary Studies