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The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

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Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

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In 1844, Charles Goodyear obtained the first patent for a rubber condom.

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During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

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Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Noll's DNase-I digestion experiment, which verified the beads-on-a-string model of DNA compacti Noll's DNase-I digestion experiment, which verified the beads-on-a-string model of DNA compacti
Developmental steps in the formation of a plant embryo Developmental steps in the formation of a plant embryo
The threespine stickleback (Gasterosteus aculeatus) has been used as a model organism for the study The threespine stickleback (Gasterosteus aculeatus) has been used as a model organism for the study
Model of the GABA Receptor–Chloride Channel Molecules in Relationship to Antiseizure Pharmacotherapy Model of the GABA Receptor–Chloride Channel Molecules in Relationship to Antiseizure Pharmacotherapy
Electronic service information is available from aftermarket sources, such as All-Data and ... Electronic service information is available from aftermarket sources, such as All-Data and ...
Vulnerability – Stress Model Vulnerability – Stress Model
Video: Knee Animation

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