After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.
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Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.
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The horizontal fraction bar was introduced by the Arabs.
Seedling growth showing the triple response to ethylene.
Phloem wound response.
Frequency distribution curve: interpatient variability in drug response
Kaplan’s Three-Stage Model of Sexual Response
The Number of Children Americans Think Are Ideal
The response of the lac operon in the presence of lactose in a cell bearing the IS mutation