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Understanding Circulatory Systems and Metamorphosis in Vertebrates - Honors Biology

This lesson focuses on the similarities and differences in the hearts and circulatory systems among various vertebrate groups, including amphibians, reptiles, birds, and mammals. Highlighting frog metamorphosis, students will learn about the unique features of toads and frogs, such as skin texture and reproduction in standing water. The lesson also explains the relationship between chamber number in hearts and the efficiency of blood circulation. Key comparisons will be made between the single-loop system in fish and the double-loop system in other terrestrial vertebrates.

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Understanding Circulatory Systems and Metamorphosis in Vertebrates - Honors Biology

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  1. Homework • Page 813 Summarizing the Concepts Section 2 Lesson 37 Honors Biology

  2. Character Education • Tadpoles are similar to fish in many ways, man is similar to lots of living things in many ways Lesson 37 Honors Biology

  3. Objectives • Compare the hearts and circulatory systems of the vertebrate groups (F-A-R-B-M) • Describe frog metamorphosis Lesson 37 Honors Biology

  4. Class Notes • Toads have dry skin and frogs have wet skin • Toads and frogs generally return to standing water to reproduce • The more chambers in a pump the more force the liquid is put under: • Annelids have 1 chamber in the heart • Fish have 2 chambers • Tadpoles have 2 chambers • Frogs have 3 chambers • Lizards have 3 chambers • Crocadilians have 4 chambers • Birds have 4 chambers • Mammals have 4 chambers and an aorta Lesson 37 Honors Biology

  5. Notes continued • Fish have a single loop circulatory system • All terrestrial vertebrates (A-R-B-M) have a double loop circulatory system Lesson 37 Honors Biology

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