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11 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Organisms with an internal backbone are called ________.
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Vertebrates
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Invertebrates have no internal backbone.
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Humans have an ____________, which means that they have a backbone that is in the middle of their bodies.
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endoskeleton
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Some invertebrates have an exoskeleton.
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Fish and reptiles don't have skin, they have __________ that protect their bodies
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scales
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not feathers
not moist skin |
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Reptiles and amphibians don't have a stable internal temperature so they are __________
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ectotherm
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cold-blooded
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These organisms need to live close by water because they live in water for part of their life cycle.
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amphibians
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frogs, toads, salamanders
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These organisms are cold-blooded, lay eggs, and have scales.
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reptiles
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lizards and snakes
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Humans are _________ which means that they have a constant body temperature
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endotherm
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warm-blooded
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Birds sit on their eggs to keep them warm until they hatch which is called______
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incubation
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an INCUBATOR takes the place of the parent in keeping the eggs warm.
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These organisms have hair, feed their young milk from mom, and have specialized teeth
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mammals
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YOU are one of these!
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The thing that transport nutrients, water, and oxygen to the fetus inside the mom.
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placenta
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It's the PLACE where the baby gets food.
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This is how long it takes the baby to develop inside the mom.
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gestation
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No hint - good luck!
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