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AP Biology

Here, we have a collection of videos and experiments that are suitable for Biology.

Anatomy and Physiology (Intro)
Introducing anatomy and physiology. Starts by describing how the form of an object fits the function. Explains the themes of homeostasis and hierarchy. Describes the four major types of tissues; epithelial, muscle, nervous and connective. Surveys all of the major organ systems in the human body.
The Digestive System
A brief description of feeding methods. Details all of the major parts within the human digestive system. This tour starts in the mouth, move down the esophagus, through the stomach, small investing, colon and rectum. Explains how all of the major macromolecules are digested and absorbed by the body.

The Respiratory System
A description of the respiratory surface. Explains how worms, insects, fish and mammals take in oxygen and release carbon dioxide. Tours the major organs of the respiratory system; from the pharynx to the trachea, bronchus, bronchiole and alveoli. Explains how oxygen is carried on the hemoglobin and how carbon dioxide is carried as bicarbonate.
The Immune System
Explains how your body protects itself from invading viruses and bacteria. Starts by describing the nonspecific immune responses of skin and inflammation. Explains how we use antibodies to disrupt the function of antigens and mark them for destruction. Explains both the homoral and cell-mediated immune response highlighting the importance of B and T lymphocytes. Describes the process of long term immunity.

Try the free Mathway calculator and problem solver below to practice various math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.
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