All of the following contraception techniques are aimed at preventing fertilization EXCEPT

a. withdrawal.
b. intrauterine device.
c. vasectomy.
d. rhythm method.
e. tubal ligation.


B

Biology & Microbiology

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Which structure is part of the brain stem?

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Compare and contrast the structure of an herbaceous eudicot stem and that of a monocot. What will be an ideal response?

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Veins primarily depend upon which of the following forces to return blood to the heart?

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If you observe rod-shaped red cells after the Gram stain, you can assume their cell walls contain endotoxin

Indicate whether the statement is true or false

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