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34 Cards in this Set
- Front
- Back
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Amphibians first appeared about
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360 million years ago
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90% of amphibians species are
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frogs and toads
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Catfish do not
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have a closed circulatory system
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The first animals with vertebrae were
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fish
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After passing through the gills the fish's blood next goes to the
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rest of the body
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The earliest fish were
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5,000,000 years ago
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All vertebrates, fish, and amphibians and Osteichythes
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have endoskeletons
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All fish have
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a lateral line system
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Cartilage skeletons are characteristic of
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Chondrichthes
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Amphibians have
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vocal chords
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Amphibians
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get oxygen through their skin
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Amphibians have
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three chambered heart
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All fish, vertebrates, amphibians, and Osteichyes have
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closed circulatory systems
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The organ in the frog that is most similar to our ear is the
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tympanic membrane
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Fish belong to the phylum
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Chordata
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Fish belong to the subphylum
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vertebrata
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Organisms which have only one way they can be cut into nearly identical halves are said to be
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bilaterally symetric
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Fish have a
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two chambered heart
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The class of fish with internal fertilization is
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cartilaginous
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The class of chondrichthyes includes
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sharks and rays
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The organ in the fish most similar to our ear is the
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lateral line system
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The class osteichtyhes get their oxygen through their
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gills
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Estivate means
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inactive during hot dry weather
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Caecilians
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worm like animals with no legs
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Metamorphosis means
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double life
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This is used to control depth
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swim bladder
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Releasing sperm and eggs into the water is called
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spawning
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This means having four limbs
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tetrapod
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Changing from a tadpole to a frog are
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amphibians
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Anura means
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amphibian without a tail
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Agnatha means
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Chordate without jaws and pelvic fins like a lamprey
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Apoda are
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worm like, legless animals
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Characteristics of a tadpole
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no legs
large tail small mouth lives only in water came before a frog (evolultionary) |
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Characteristics of a frog
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Four legs
No tail Large mouth Lives on land and water Evolutionary-appeared after tadpoles |
