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9 Cards in this Set
- Front
- Back
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Amniotic Egg
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an egg in which the embryo is protected by a membrane called an amnion. In addition, the egg is covered in a hard or leathery covering.
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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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Down feathers
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feathers with smooth barbules but no hooked barbules
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Endothermic
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A creature is endothermic if it has an internal mechanism by which it can regulate its own body temperature, keeping it constant.
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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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Hemotoxin
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a poison that attacks the red blood cells and blood vessels, destroying circulation
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Mammory glands
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specialized organs in animals that produce milk to nourish the young
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Neurotoxin
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a poison that attacks the nervous system causing blindness, paralysis, or suffocation
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Placenta
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a structure that allows nutrients and gases to pass between the mother and the embryo
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