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Chordates

Chordates

Chordates . Notocord Dorsal hollow nerve cord Gills Postanal tail. Figure 34.0 A snake skeleton exhibits defining characteristic of a vertebrate. Figure 34.2 Chordate characteristics. Figure 34.3 Subphylum Urochordata: a tunicate.

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805 views • 55 slides
KEY CONCEPT Reptiles, birds, and mammals are adapted for life on land.

KEY CONCEPT Reptiles, birds, and mammals are adapted for life on land.

KEY CONCEPT Reptiles, birds, and mammals are adapted for life on land. Amnion Protects and surrounds the embryo. Amniotes can retain moisture. An amniote develops inside a thin, tough, membranous sac as an embryo or fetus. Several characteristics help amniotes prevent water loss.

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124 views • 12 slides
KEY CONCEPT Reptiles, birds, and mammals are adapted for life on land.

KEY CONCEPT Reptiles, birds, and mammals are adapted for life on land.

KEY CONCEPT Reptiles, birds, and mammals are adapted for life on land. Amnion Protects and surrounds the embryo. Amniotes can retain moisture. An amniote develops inside a thin, tough, membranous sac as an embryo or fetus. Several characteristics help amniotes prevent water loss.

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442 views • 6 slides
KEY CONCEPT Reptiles, birds, and mammals are adapted for life on land.

KEY CONCEPT Reptiles, birds, and mammals are adapted for life on land.

KEY CONCEPT Reptiles, birds, and mammals are adapted for life on land. Amnion Protects and surrounds the embryo. Amniotes can retain moisture. An amniote develops inside a thin, tough, membranous sac as an embryo or fetus. Several characteristics help amniotes prevent water loss.

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61 views • 6 slides

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