« previous next »
« previous next »
 

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

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.

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

Apical and Lateral Meristems (Part 2) Apical and Lateral Meristems (Part 2)
High rates of rural poverty have been a part of the United States from its origin to the present. ... High rates of rural poverty have been a part of the United States from its origin to the present. ...
Drawing shows what is occurring electrically at each part of the scope pattern. Drawing shows what is occurring electrically at each part of the scope pattern.
Recent history of biochemistry shown by the introduction of new techniques. (part 1) Recent history of biochemistry shown by the introduction of new techniques. (part 1)
How to calculate simple interest (Part 2) How to calculate simple interest (Part 2)
Video: Structures that affect circulation - venous return

For a complete list of videos, visit our video library