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9 Cards in this Set
- Front
- Back
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Amniotic egg
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A shelled, water-retaining egg that allows reptile, bird, an certain mammal embryos to develop on land
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Neurotoxin
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A poison that attacks the nervous system, Audi g blindness, paralysis, or suffocation
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Hemotoxin
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A poison that attacks the red blood cells and blood vessels, destroying circulation
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Endotherm
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An organism that is internally warmed by a heat-generating metabolic process
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Down feathers
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Feathers with smooth barbules but no hooked barbules
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Contour feathers
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Feathers with hooked and smooth barbules, allowing the barbules to interlock
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Placenta
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A structure that allows an embryo to be nourished with the mother's blood supply
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Gestation
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The period of time during which an embryo develops before being born
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Mammary glands
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Specialized organs in mammals that produce milk to nourish the young
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