After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").
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The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.
Deducing genotypes of crossed parents
Crossing over during meiosis leads to allele combinations in sex cells that are not present in the p
Many households today include young adults who have not moved out of their parents’ homes (or who ...
When children are “launched” into independence, their parents often find new interests together ...
Thank your parents if you’re smart
A cowbird with its foster parent. A female cowbird minimizes her cost of parental care by laying her