1. DO NOW Juniors – tell Mrs. Strickhart what you are taking for science next year

2. What is an Animal?

3. Questions! 1. What are the characteristics of animals? 2. How do protostomes differ from deuterstomes? What is the ancestral protistan of animals? What are the two major groups based on “tissues”? What are the two types of symmetry?

4. More things to write! Describe the three types of body cavities. Describe a blastula. Describe a Blasopore What are Lophotrochozoans? What are Ecdysozans?

5. Animal Characteristics ingestion – eating other organisms or decomposed material cell structure – lack of cell wall, form collagen in the ECM, tight junctions, desmosomes, gap junctions unique tissues – muscle and nervous tissues for movement

9. Parazoa - Eumetazoa Parazoa – no tissues Eumetazoa – true tissues

10. Radiata - Bilateria Radially symmetrical

11. Bilateral Bilateral Symmetry If split in two, two mirror images result Cephalization - nerves and sensory organs concentrated toward the head end – evolved to help organisms locate food

12. Acoelomate, Pseudocoelomate, and Coelomate A = without a body cavity Pseudo = false body cavity, not completely lined Coelomate = body cavity lined, fluid filled

14. Nematodes are commonly called roundworms. They have a body cavity that does not have a lining. The cavity is referred to as a pseudocoel. Pseudocoleomate

16. The blastula is a hollow ball of cells that forms in early embryonic development.

17. Some cells migrate upward into the blastula to form a blastopore. This opening eventually forms the mouth of animals called protostomes. If the opening does not form the mouth, but instead forms the anus, the animals are deuterostomes.

18. Deuterstome vs Protostome

20. Do It NOW!!!! Quiz Today you will be dissecting two invertebrates and earthworm and a grasshopper. Using your animal clad, answer the following. 1.Are these two animals Parazoans or Eumetazoans? What does that mean? 2.Are these two animals part of Radiata or Bilateria? What does that mean? 3.Are these animals Protostomes or Deuterostomes? What does that mean? 4.Which animal is a Lophotrochozoan? What does that mean? 5.Which animal is a Ectyzoan? What does that mean?

21. Do It NOW!!!! Quiz Today you will be dissecting two invertebrates and earthworm and a grasshopper. Using your animal clad, answer the following. 1.Are these two animals Parazoans or Eumetazoans? What does that mean? 2.Are these two animals part of Radiata or Bilateria? What does that mean? 3.Are these animals Protostomes or Deuterostomes? What does that mean? 4.Which animal is a Lophotrochozoan? What does that mean? 5.Which animal is a Ectyzoan? What does that mean?

22. The Lophotrochozoa comprise one of the major groups within the animal kingdom, In turn, the Lophotrochozoa belongs to a larger group within the Animalia called the Bilateria, because they are bilaterally symmetrical with a left and a right side to their bodies.animal kingdom

23. Lophotrochozoans Grouped together because of the molecular evidence Trocho = development of trochophore larvae Lophophore = horseshoe shaped crown of ciliated tentacles

24. Ecdysozoa Separated into the clad via molecular data Morphologically – produce exoskeletons therefore growth must occur via molting