« previous next »
« previous next »
 

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

Energy-flow diagram for a Georgia salt marsh. Energy-flow diagram for a Georgia salt marsh.
Electronmicrograph showing a blood clot composed of fibrin, red blood cells, and tissue debris. Electronmicrograph showing a blood clot composed of fibrin, red blood cells, and tissue debris.
red blood cells red blood cells
Measuring the Activity of Feature Detection Cells Measuring the Activity of Feature Detection Cells
Details of two hair cells Details of two hair cells
Gene gun used to blast gold particles containing pea gene A into cells of white petals Gene gun used to blast gold particles containing pea gene A into cells of white petals
Video: Pressure volume relationships - Normal inspiration and expiration

For a complete list of videos, visit our video library