« previous next »
« previous next »
 

Did you know?

In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

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.

heart model front heart model front
A high-resolution model of the 50S ribosomal subunit A high-resolution model of the 50S ribosomal subunit
Denney's model ON actual level of performance on exercised and unexercised abilities Denney's model ON actual level of performance on exercised and unexercised abilities
Vermont Instruments manufactures two models of calculators. The finance model is the Fin-X and ... Vermont Instruments manufactures two models of calculators. The finance model is the Fin-X and ...
Ethanol has the molecular formula C2H6O. Which ball and stick model shown above represents ... Ethanol has the molecular formula C2H6O. Which ball and stick model shown above represents ...
The attenuation model regulating the tryptophan operon The attenuation model regulating the tryptophan operon
Video: Female Reproductive System - Hormonal regulation (GnRH) الجهاز التناسلي للأنثى - التنظيم الهرموني

For a complete list of videos, visit our video library