« previous next »
« previous next »
 

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Did you know?

The FDA recognizes 118 routes of administration.

Did you know?

Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.

Trophic levels Trophic levels
Four levels of protein hierarchy Four levels of protein hierarchy
Bronfenbrenner was interested in bidirectional relationships between different levels of the ... Bronfenbrenner was interested in bidirectional relationships between different levels of the ...
The four levels of PPE according to the EPA (from left to right): Level A, Level B, Level C, and ... The four levels of PPE according to the EPA (from left to right): Level A, Level B, Level C, and ...
Commercially made peanut butter doesn’t have any detectable levels of trans fatty acids Commercially made peanut butter doesn’t have any detectable levels of trans fatty acids
If 0.40 mol of NaN3 reacts completely in the reaction shown below, then ________ L of N2 will ... If 0.40 mol of NaN3 reacts completely in the reaction shown below, then ________ L of N2 will ...
Video: Rods and Cones Animation

For a complete list of videos, visit our video library