« previous next »
« previous next »
 

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

It is difficult to obtain enough calcium without consuming milk or other dairy foods.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

Medication errors are three times higher among children and infants than with adults.

A patient’s cognitive ability depends on his or her psychologic status, which is influenced by ... A patient’s cognitive ability depends on his or her psychologic status, which is influenced by ...
Percent of Mothers in the Workforce by Age of Children and Marital Status Percent of Mothers in the Workforce by Age of Children and Marital Status
The testing procedure that was used to evaluate the neuropsychological status of split-brain ... The testing procedure that was used to evaluate the neuropsychological status of split-brain ...
Women status and the population growth rates Women status and the population growth rates
Color Is Not Always an Indicator of Whether Meat Is Thoroughly Cooked Color Is Not Always an Indicator of Whether Meat Is Thoroughly Cooked
Action Potentials: the Status of Na+ and K+ Voltage-Gated Channels Action Potentials: the Status of Na+ and K+ Voltage-Gated Channels
Video: Transferring genes into plants Animation

For a complete list of videos, visit our video library