180 likes | 299 Views
Week 28, Day Four. HW # 94- TBA- no homework over Spring Break Warm up How many different kinds of animals are there? Are there more insects than mammals? What about insects compared to fish?. Warm up Response . N. Homework Response/Check. Did you complete your essay outline?.
E N D
Week 28, Day Four HW # 94- TBA- no homework over Spring Break Warm up How many different kinds of animals are there? Are there more insects than mammals? What about insects compared to fish?
Homework Response/Check • Did you complete your essay outline?
Goals for Today • Examine Protozoa and Invertebrates using compound and dissecting scopes. • View the power point and take notes.
Currently, textbooks from the United States use a system of six kingdoms (Animalia, Plantae, Fungi, Protista, Archaea, and Bacteria) • Protozoa (Protista) • single cell • microscopic to 5mm • cousins with foraminifera (shells form limestone- which is what the Egyptian pyramids were made of) • Important in soi, ocean, and fresh water food chains • can carry disease (Plasmodium vivax) – ex Malaria
Difflugia sp. Didinium Eats green alga (Spirogyra) Eats Paramecium BlepharismaBursariatruncatellaSpirostomum
Phylum- Porifera (sponges) • Among the simplest, multicellular animals • Unspecialized tissues • No organs
Phylum- Cnidaria • Hydra • Freshwater • Simplest animals with definite tissues • Stinging tentacles (filled with nematocyst threads) • Up to 25 mm • Ability to regenerate lost body parts
Phylum- Platyhelminthes (flatworms) • Bilateral symmetry • Internal reproductive system • Layers of muscles • Simple nervous system • Exhibit an ability to learn • Free living (not parasitic)
Phylum- Arthropoda • Includes crustaceans (crabs, lobsters, shrimp) • Provide abundant food for fish • Form an essential link in aquatic food chains
Amoeba proteus Euglena gracilis Paramecium multmicronucleam StentorCoeruleus Spirostomumambiguum Volvoxaureus Dugdsiadoratocephala?? Hydra littoralis Daphnia magna