Term
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Definition
| a muscular cavity at the end of the large intestine through which digestive wastes, urine and eggs or sperm leave the body |
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Term
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Definition
| eardrum of amphibians inside the skull; vibrates in response to sound, allowing hearing |
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Term
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Definition
| a vertebrate that, with some exceptions, lives in water as a larva and on land as an adult, breathes with lungs as adult, has moist skin that contains mucous glands, and lacks scales and claws |
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Term
| How are amphibians adapted to land? |
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Definition
- Bones in limbs became stronger, permitting more efficient movement
- Lung adaptation enabled amphibians to breathe air
- Sternum, or breastbone, formed a bony shield to support and internal organs, especailly the lungs |
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Term
Describe amphibian respiration:
How does this relate to their ability to live on land? |
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Definition
- Gas exchange occurs thru the skin as well as the gills.
- Lungs replace gills when it becomes an adult
- In some, frogs and toads, lungs get well developed
- In others, such as salamanders, the lungs are not as well developed(exchange thru lining in mouth cavity as well as skin) |
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Term
Explain the circulatroy system of amphibians:
How is it deficient? |
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Definition
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Term
Describe amphibian reproduction:
How does this cause problems for them to live on land? |
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Definition
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