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eBook
Biology Pages

Kimball's Biology Pages: Animal Circulatory Systems

For Students 9th - 10th
This page has information on different types of animal circulatory systems. Scroll to the bottom of the page to find out about mammals.
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eBook
Biology Pages

Kimball's Biology Pages: Anatomy of the Human Circulatory System

For Students 9th - 10th
This site is produced by John W. Kimball, a retired biology teacher who wrote the textbook that these pages came from. The excerpt explains the different parts of the circulation system and how they function. Includes great pictures!