« previous next »
« previous next »
 

Did you know?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

Did you know?

Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

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.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

A vertebrate digestive system, as shown in the human. A vertebrate digestive system, as shown in the human.
Caste System Caste System
A typical port fuel-injection system squirts fuel into the low pressure (vacuum) of the intake ... A typical port fuel-injection system squirts fuel into the low pressure (vacuum) of the intake ...
A hole in the exhaust system can cause outside air (containing oxygen) to be drawn into the exhaust ... A hole in the exhaust system can cause outside air (containing oxygen) to be drawn into the exhaust ...
The human gustatory system. The human gustatory system.
Function divisions of nervous system Function divisions of nervous system
Video: Secondary Active Transport

For a complete list of videos, visit our video library