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9 Cards in this Set
- Front
- Back
amniotic egg
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a shelled, water-retaining egg that allows reptile, bird, and certain mammal embryos to develop on land
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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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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 in internally warmed by 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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