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4/24 & 4/25 - 7 th Grade Agenda

4/24 & 4/25 - 7 th Grade Agenda. Learning Objective: Learn about Jelly Fish & Coral Reef Collect HW: Review & Reinforce p.61 & 64 Microviewer Lab: Cells of your body Video: Killer Jelly Fish Passback HW Textbook Reading 412 – 416 HW: Reading & Notetaking 195 – 196

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4/24 & 4/25 - 7 th Grade Agenda

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  1. 4/24 & 4/25 - 7th Grade Agenda Learning Objective: Learn about Jelly Fish & Coral Reef Collect HW: Review & Reinforce p.61 & 64 Microviewer Lab: Cells of your body Video: Killer Jelly Fish Passback HW Textbook Reading 412 – 416 HW: Reading & Notetaking 195 – 196 HW: Signed Grade Printout

  2. Reflection • Prompt: Write 3 questions that you have about Jelly Fish and Coral Reef.

  3. What are the six kingdoms of living things?

  4. 4 Characteristics of animals • Many celled organisms • Obtain their food by eating other organisms • Reproduce sexually • Move from place to place

  5. An animal that does not have a backbone is called an i__________. nvertebrate • Most animal species (95%) are invertebrates • Can you name some invertebrates? • Jellyfishes, worms, snails, crabs, spiders & insects

  6. An animal that has a backbone is called a V__________. ertebrate • Can you name some vertebrates? • Fishes, amphibians, reptiles, birds and mammals

  7. Classification of Animals • Vertebrates • Invertebrates • 35 Major Groups called a Phylum

  8. Are Sharks vertebrates? • Yes • Although they have cartilages instead of bones, they have a skeleton and a backbone

  9. Sea anemone and many circular animals exhibit R______ S_______ adial ymmetry • What are some characteristics of Radial Symmetry Animals? • Do not have distinct front or back ends • Lives in the ocean • Senses their environment in all directions

  10. The balanced arrangement of a butterfly’s body is called B_______ S________ ymmetry ilateral • What are some characteristics of Bilateral Symmetry Animals? • Larger & More complex than radial symmetry animals • Moves more quickly • Sense organ in the front

  11. Is a Sponge an animal or a plant? • Sponge is an animal • Although it cannot move around from place to place sponge take food into their bodies

  12. What do sponges eat? • Tiny organisms such as bacteria and protists • Sponge gets its oxygen from water • Network of spikes support the sponge

  13. Sponge Larva • Sponge reproduce asexually and sexually • Sponges do not have separate sexes • At any one time of the year, some sponges are producing eggs and others are producing sperms

  14. What are Cnidarians?

  15. More on Cnidarians • Unlike sponges, cnidarians have specialized tissues • Muscle like tissues for swimming • Anemones stretch out

  16. How does cnidarians obtain and digest food? • Cnidarians captures its prey by using its stinging cells to inject venom • Then the cnidarian’s tentacles pull the prey animal to its mouth • From there the food passes into a body cavity where it is digested.

  17. Jellyfish Facts • They are not used to make Jelly • 98% Water • No Heart or Blood • Most don’t have a brain (except Box Jellyfish) • Most only detect light. Some have 24 eyes (Box Jellyfish) • When stung, Vinegar (not urine) is the best treatment • Irukandji Jellyfish (size of fingernail) can kill you with a single sting.

  18. How are coral reefs made? • Built by cnidarians • Free swimming coral larva attaches to a solid surface ( broken shell, sunken ship) • The coral polyp produces a hard, stony skeleton around its soft polyp body • Over thousands of years, as live corals add their skeletons, the reef grows

  19. Reflection • Prompt: Write 5 facts that you learned in the video.

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