Chapter 3.4 (Biology, Grade 7)

How does blood circulate in the body?

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Chapter topics:

  1. How does blood circulate in the body?
  2. Introduction
  3. What is closed circulatory system?
  4. Test or research
  5. Fish have single circulatory system
  6. Bonus: Fast swimmers
  7. Terrestrial vertebrates have double circulatory system
  8. The circulatory system of amphibians and reptiles
  9. Bonus: Why can some reptiles move faster than amphibians?
  10. The circulatory system of birds and mammals
  11. Questions and tasks
  12. Important terms

A valid license for package „Erakasutaja 2024/25”, „Õpilane 2024/25”, „Õpilane 2024/25 - SOODUSHIND!”, „Õpilane 2024/25 – isiklik”, „Õpilane 2024/25 isiklik: eesti ja venekeelne” or „Õpilane 2024/25: eesti ja venekeelne” is required to use the kit. Click the link with the package name to learn more about the package and order a license.

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