Examlex
Suppose you built a scale-model atom in which the nucleus is the size of a tennis ball.About how far would the cloud of electrons extend?
Bone Density
A measure of the amount of minerals (such as calcium) contained in a certain volume of bone.
Depo-Provera (DMPA)
A birth control shot that contains the hormone progestin, administered every three months to prevent pregnancy.
Injection
The act or process of administering a liquid, especially a drug, into a person's body using a needle and syringe.
Condoms
Barrier devices used during sexual intercourse to reduce the risk of sexually transmitted infections and prevent pregnancy.
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