Biology, asked by Ayush25dec1, 1 year ago

please answer fast of question no 14

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Answered by dev358
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amphibians respire through gills or lungs means some respire through gills and some through lungs .
but I don't know about their reproduction. that sexually or non sexually . but know that they lay eggs
Answered by Anonymous
0
Amphibian reproduction has more in common with that of fish than it does of mammals or even reptiles. While all of these animals reproduce sexually (meaning that the species consists of males and females and mating involves the fetilization of eggs by sperm), reptiles and mammals reproduce through internal fertilization (inside the female) whereas amphibians practice external fertilization.


Most amphibians breathe through lungs and their skin. Their skin has to stay wet in order for them to absorb oxygen so they secrete mucous to keep their skin moist (If they get too dry, they cannot breathe and will die). Oxygen absorbed through their skin will enter blood vessels right at the skin surface that will circulate the oxygen to the rest of the body. Sometimes more than a quarter of the oxygen they use is absorbed directly through their skin. Tadpoles and some aquatic amphibians have gills like fish that they use to breathe. There are a few amphibians that do not have lungs and only breathe through their skin.




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