« previous next »
« previous next »
 

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

Fluids inside and outside of cells Fluids inside and outside of cells
Photosynthetic thylakoid membranes and numerous gas vesicles found in a cell of the cyanobacterial g Photosynthetic thylakoid membranes and numerous gas vesicles found in a cell of the cyanobacterial g
Eye Color Is a Sex-Linked Trait in Drosophila (Part 2) Eye Color Is a Sex-Linked Trait in Drosophila (Part 2)
whitefish blastula cells whitefish blastula cells
Schematic drawing of a rod cell Schematic drawing of a rod cell
Video: EpiPen Animation (Part 1)

For a complete list of videos, visit our video library