Bio Lab Wksht & HW Questions 98

Bio Lab Wksht & HW Questions 98 - (body covering)...

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93 Subphylum Craniata: Chordates having a head consisting of a brain, eyes, and other paired sensory organs, enclosed in a cranium (skull). Below is a list of craniate classes. Myxini (hagfishes) Amphibia (frogs, toads, salamanders) Cephalaspidomorphi (lampreys) Reptilia (snakes, lizards, turtles) Chondrichthyes (sharks and rays) Aves (traditional class for birds) Osteichthyes (bony fish) Mammalia (mammals) Use your observations, the information below and your text (Figure 34.2) or lecture notes to fill in the Table on the next page: Vertebral column may be present or not . Jaws may be present or not . Skeleton may be cartilaginous or bony . Breathing may be via skin , gills , or lungs (or combinations thereof). The integument
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Unformatted text preview: (body covering) may be smooth and glandular skin, scales , feathers , or fur . Note that skin per se is present in all cases. Limbs may be fins (paired pectoral and pelvic), poorly- or well-developed walking legs , or wings, and may be positioned under the animal or to the side. Teeth may be homodont (all of the same type) or heterodont (different types such as canines, incisors, etc.), or lacking altogether. Eggs may be amniotic (shelled and water-retaining) or non-amniotic (shell lacking). Class: Vertebral Column Jaws Skeleton Breathing Apparatus Integument Limbs Teeth Eggs Myxini Cephalaspidomorphi Chondrichthyes Osteichthyes Amphibia Reptilia Aves (traditional class) Mammalia...
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