'First fishes' diaporamas de présentation

Origin of Life on Earth Characteristics of Early Life Self-Replication

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Basic A nimal Groups

Basic A nimal Groups. Charlotte Martin. References. Basic Animal Groups. Grade Level: 4th Grade Content Area: Biology

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Nonvertebrate Chordates, Fishes, and Amphibians

Nonvertebrate Chordates, Fishes, and Amphibians. Ms. Moore 3-1-13. What is a Chordate?. Phylum: Chordata A chordate is an animals that has, for at least some stage of life, a dorsal, hollow nerve cord; a notochord ; pharyngeal pouches ; and a tail that extends beyond the anus.

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VERTEBRATES IN HISTORY

VERTEBRATES IN HISTORY. VERTEBRATES. 50,000 known species of vertebrates More than half are fishes. Major Eras of Vertebrate Development. Oldest:Paleozioc (286-600 mya ) Middle :Mesozoic (145-250 mya ) Youngest: Cenozoic (65 mya - present). How to Read Table 4.2. Bottom is longer ago

287 views • 12 slides