The Animal Kingdom : The Chordates Day 3

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The Animal Kingdom The Chordates Day 3
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Recall All chordates have a notochord during
their embryological development that usually
turns into a spinal column.
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CLASS Aves (Birds)

• They are warm blooded
• They have internal fertilization
• They have external development (hard shell eggs)

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Birds (cont)

• They breathe with multiple lungs
• They have scales feathers
• Chickens, robins, eagles, kiwis emus

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CLASS Mammalia

• They are warm blooded
• They have internal fertilization
• They have internal development (except monotremes)

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Mammals (cont)

• They breathe with lungs
• They have hair of some sort
• Dogs, rats, seals, whales, gorilla people

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