« previous next »
« previous next »
 

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

Did you know?

More than 4.4billion prescriptions were dispensed within the United States in 2016.

Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

Experimental evidence of the effect of allelochemicals on plant production. Experimental evidence of the effect of allelochemicals on plant production.
Research Methods Research Methods
Research Terminology Research Terminology
Research Report Evaluation Worksheet Research Report Evaluation Worksheet
Piaget's research involved several kinds of conservation tasks Piaget's research involved several kinds of conservation tasks
Gel electrophoresis, an essential laboratory technique in biological science research Gel electrophoresis, an essential laboratory technique in biological science research
Video: Glycolysis - and oxygen

For a complete list of videos, visit our video library