AT&T; LTE 3:11 PM Ch32 33 Objectives for Animals.doc ?? Annelidsa 34. Know how t
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AT&T; LTE 3:11 PM Ch32 33 Objectives for Animals.doc ?? Annelidsa 34. Know how to classify annelids according to the 4 animal body plan features (see#8). 35. Know the following vocabulary that is specific for annelids: chactac, Errantia, Sedentaria. To what group does 36. Do all annelids capture food the same way? Briefly 37. Do annelids have a skeleton? Can they move? How? Are 38. Do annelids have a circulatory system? A complete gut the earthworm belong? explain how earthworms capture and consume food items. they segmented/metameric? (with a mouth at one end and an anus at the other end)? Nervous system? Excretory system? Mollusca 39. Know how to classify molluscs according to the 4 animal body plan features (see#8). 40. Be able to explain the two general feeding methods of molluscs (suspension feeding and using a radula). For cach type, how do molluscs capture, ingest, and digest food? Be able to talk about features of their body plan that allow them to do this efficiently 41. Do molluscs have a complete gut? A circulatory system? A skeleton? How do they move? Are they segmented? Nervous system? Excretory system? 42. Do any molluscs have trochophore larvae? Which ones? 43. Know the following vocab words that are specific to molluscs: radula, beak, chiton, visceral mass, mantle, foot. 44. Compare and contrast the 4 mollusc classes with respect to the morphology and use of their gills, foot, shell, and radula. Previous Next Courses Calendar To Do Notifications MessagesExplanation / Answer
34) Annelids are tripoblastic, coelomate, bilaterally symmetrical and metamerically segmented animals.
35) Chactae. Earthworm belongs to chactae group.
37) Yes, annelids have hydrostatic skeleton.
Annelids can move. During muscular contraction, the body wall pushes against each compartment wall. This allows separate regions to contract independently and elongate during locomotion.
Yes, they are metamerically segmented animals.
38) Annelids have closed circulatory system with blood vessels and a gut that ends with an opening on the underside of the pygidium. They have nervus system consisting of a pair of ganglia connected by nurve cords to another pair of ganglia. They have excretory system with segmental nephridia.
39) Molluscs are tripoblastic, coelomate, bilaterally symmetrical animals.
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