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Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

Did you know?

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

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

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Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

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Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Internal view of the heart illustrating the heart chambers, heart layers, and major blood vessels as Internal view of the heart illustrating the heart chambers, heart layers, and major blood vessels as
Line analysis of Titian, Assumption and Consecration of the Virgin. Line analysis of Titian, Assumption and Consecration of the Virgin.
Tumor marker analysis of a patient undergoing therapy, who (1) after surgery had residual disease ... Tumor marker analysis of a patient undergoing therapy, who (1) after surgery had residual disease ...
Validation of the genetic code by amino acid sequence analysis of T4 phage lysozyme mutants Validation of the genetic code by amino acid sequence analysis of T4 phage lysozyme mutants
Internal structure of the nose—lateral view Internal structure of the nose—lateral view
Dihybrid-cross analysis Dihybrid-cross analysis
Video: Primate Evolutionary Tree Animation

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