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10 Cards in this Set
- Front
- Back
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What subphylum is the sea squirt in?
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Urochordata
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What subphylum is the lancelet in?
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Cephalochordata
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What subphylum are animals with backbones in?
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Vertebra
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What subphylum are lamprey eels?
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Agnatha
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What subphylum are sharks, rays, and skates?
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Chondrichthyes
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What subphylum are salmon in?
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Osteichthyes
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What's the difference between rays and skates?
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Rays have thinner tails, skates have thicker, fleshy tails.
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What is hemoglobin?
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gives blood its red color, holds onto the oxygen so that the oxygen can be transported by the blood.
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How do amphibians breathe?
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through their skin
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What are the six characteristics of amphibians?
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endoskeleton made mostly of bone, smooth skin w/ many capillaries and pigments, two pairs of limbs with webbed feet, as many as 4 organs for respiration, three chambered heart, oviparous with external fertilization
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