1. 5/17 & 5/18 - 7 th Grade Agenda Learning Objective: Learn about Fish Collect HW: Reading & Notetaking 219 – 222 Who wants to be a Millionaire Chap 11 Test Classwork: “Scientific Names” Video: BBC Life “Challenges of LIfe” Textbook Reading 462 – 467 HW: Reading & Notetaking 223 – 226

2. Annular Eclipse: May 20 th (Sunday) 6:38pm 78% of the sun covered up by the moon

3. Annular Eclipse: May 20 th (Sunday) You can not stare directly at the sun You must wear Eclipse glasses You can order them from Amazon or rainbowsymphonystore.c om 5 Extra credit points if you take a picture of you watching the eclipse with Eclipse glasses

4. Reflection Prompt: Write 3 questions that you have about frogs.

5. What type of animal is a vertebrate? Fish Sharks Reptiles Amphibians Mammals Birds

6. What do all Vertebrates share in common? Backbone Endoskeleton Endoskeleton allows an animal to become larger than Exoskeleton. Why? Skeleton of a Seal

7. One of the most primitive Vertebrate - Lancelet Notochord: Flexible rod that supports the animal’s back

8. What is Ectotherm vs. Endotherm Ecto (Outer) + Therm (Heat) = Gets the heat from the outside. Cold blooded Examples of Ectotherm animals: Fish, Amphibian & Reptiles Endo (Inner) + Therm (Heat) = Gets the heat from the inside. Warm blooded Examples of Endotherm animals: Mammals & Birds

9. Fish without jaws - Lampreys

10. Cartilaginous Fishes – Sharks and Rays

11. Bony Fish

12. What are the characteristics of Fishes? Vertebrate Live in water Have Fins Ectotherm (cold blooded) Have Scales Obtain oxygen through gills

13. How does Fish obtain Oxygen? Fish obtain oxygen in the water through its gills

14. Does Fish break down H 2 O into Hydrogen and Oxygen? Fish do not break H2O into hydrogen and oxygen. There is oxygen gas dissolved in the water. Their gills extract this oxygen gas out of the water and return CO2 just as our lungs do. What would happen to the fish if there was no oxygen in the water?

15. Most fishes have external fertilization In external fertilization, the eggs are fertilized outside the female’s body. The male hovers close to the female and spreads a cloud of sperm cells over the eggs she releases There are exceptions – Guppies, Mollies (Live birth)

16. Amphibians evolved from Fish Mudskipper Fish (Type of Goby Fish) It can live out of water for long periods It can breath through its skin just like Amphibians

17. What are Amphibians? The word amphibian means “double life” After beginning their lives in water Most amphibians spend their adulthood on land Returning to water to reproduce.

18. Life cycle of an Amphibian

19. Do tadpoles have lungs or gills? Gills

20. Do frogs have lungs or gills? Lungs