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Amphibians are devoid of scales because they are descendants of fish, which also lack scales. Early amphibians evolved from lobe-finned fish, which had bony plates in their skin instead of scales. Over time, these bony plates transformed into the smooth, moist skin characteristic of modern amphibians. This adaptation allowed for better gas exchange through the skin, crucial for their semi-aquatic lifestyle.
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What two external features are shared by fish and amphibians?
Amphibians are cold-blooded animals that have a backbone, lungs, and permeable skin. They have flat skulls that are also wide, movable eyelids,Êand limbs. Frogs toads and salamanders are amphibians belonging to different orders.
What are three types of amphibians?
Frogs, toads, newts and salamanders are amphibians.Amphibians are cold-blooded.Amphibians spend part of their lives under water and part of their lives on land.They lay jelly-covered eggs in the water.Amphibians breathe with gills or lungs or through their skin.Baby amphibians live in water and breathe with gills.An amphibian's skin is moist. (They do NOT have scales.)Amphibians are vertebrates -- they have backbones.Most amphibians live in or near water or in damp places.
Did reptiles evolve from amphibians?
No, they did not.
What tools do herpetologists use?
Herpetology is a branch in zoology that studies reptiles and amphibians; a herpetologist is a person who studies reptiles and amphibians. Tools that herpetologists use are namely: snake hook, anti-venom, goggles, gloves and weighing scales.
When Pangaea formed the climate changed And the land on earth become drier . How was this climate change more favorable to reptiles than amphibians?
The formation of Pangaea led to a drier climate, which favored reptiles over amphibians due to reptiles' adaptations to terrestrial life. Reptiles possess waterproof scales and can conserve water, allowing them to thrive in arid environments. In contrast, amphibians rely on moist habitats for reproduction and skin respiration, making them more vulnerable to the changing climate and less able to adapt to drier conditions. This resulted in reptiles becoming more dominant during this period.
Do amphibians and reptiles has scales?
Amphibians do not have scales; reptiles do.
Do all amphibians have scales?
No only reptiles. Amphibians have moist permeable skin.
Why are reptiles different from amphibians?
Reptiles have scales and Amphibians do not.
Does amphibians have skin with scales or larger scales?
Amphibians do not have hard scales. Their skin is smooth. It is covered in a thin layer of mucus to keep it moist.
What do amphibians have on there skin?
no scales
Do anphibians have skin or scales?
amphibians have skin not scales if i am not mistaken
Does the posion dart frog have scales?
No, poison dart frogs are not scaly. Reason being, they are amphibians, and amphibians do not have scales.
Are the scales of amphibians smooth?
Slimy.
Do fish and amphibians have scales?
yes
Do axolotl have scales?
No, they are amphibians, so they have skin.
Are amphibians naked animals because they have scales?
no they are not
Is an snake a anphibian?
No, amphibians do not have scales. A snake has scales and it is a reptile.
