Term
| What 4 characteristics do all chordates have in common? |
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Definition
1. notochord
2. nerve cord
3. pharyngeal gill slits
4. post anal tail |
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Term
| Name 2 invertebrate chordates. |
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Definition
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Term
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Definition
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Term
| What features do all vertebrates have in common? |
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Definition
| skull, backbone, endoskeleton, closed circulatory system |
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Term
| What is the advantage of having an endoskeleton vs. a exoskeleton? |
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Definition
| don't need to molt, skeleton grows with you, less vulnerable |
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Term
| What is the advantage of having a closed circulatory system vs. an open? |
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Definition
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Term
| What is the function of gills? |
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Definition
| allows oxygen to diffuse in through the water to breathe |
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Term
| Are fish endothermic or ectothermic? |
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Definition
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Term
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Definition
| cold blooded, can't regulate body temp, body temp is same as environment |
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Term
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Definition
| warm blooded, can regulate body temp |
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Term
| What are the characteristics of cartilaginous fish? |
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Definition
| skeleton made of cartilage instead of bone, uncovered gill slits, no scales, lateral line |
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Term
| What is the function of the lateral line? |
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Definition
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Term
| Give an example of a cartilaginous fish. |
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Definition
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Term
| How are bony fish different from cartilaginous fish? |
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Definition
| bony fish have a skeleton made of bone, have scales, covered gill slits, swim bladder |
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Term
| What is the function of the swim bladder? |
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Definition
| air sac that allow fish to change its density to move up and down in water |
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Term
| How many heart chambers do bony fish have? |
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Definition
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Term
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Definition
| reproductive organs (testes or ovaries) |
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Term
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Definition
| external fertilization, female lays eggs in water, male releases sperm in water |
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Term
| Define external fertilization. |
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Definition
| fertilization that happens outside of the body |
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Term
| What animals undergo metamorphosis? |
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Definition
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Term
| Adult frogs use gills. True or False |
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Definition
| False, they breathe with lungs or through their skin |
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Term
| What animals lay jelly like eggs? |
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Definition
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Term
| How many heart chambers do amphibians have? |
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Definition
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Term
| What type of fertilization do frogs have? |
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Definition
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Term
| Are amphibians ectothermic or endothermic? |
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Definition
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Term
| What was the first group to have an amniotic egg? |
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Definition
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Term
| What animals have scales? |
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Definition
| bony fish, reptiles, birds (on feet) |
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Term
| What type of fertilization do reptiles have? |
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Definition
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Term
| How many heart chambers do reptiles have? |
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Definition
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Term
| Are reptiles ectothermic or endothermic? |
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Definition
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Term
| Give examples of reptiles. |
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Definition
| turtles, lizards, snakes, crocs, alligators |
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Term
| Are birds ectothermic or endothermic? |
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Definition
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Term
| How many heart chambers do birds have? |
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Definition
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Term
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Definition
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Term
| What characteristics do mammals have in common? |
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Definition
| endothermic, mammary glands, hair |
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Term
| What category of mammals lay eggs? |
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Definition
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Term
| What category of mammals have embryos that are born before they are fully developed? |
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Definition
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Term
| What category of mammals have embryos that fully develop inside of the uterus? |
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Definition
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Term
| What type of mammal are humans? |
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Definition
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