Frogs and worms do have in their skins than humans because they breathe through the skin.
Frogs and humans both belong to the phylum Chordata.
They both poo
frogs use their skin for their respiration (since it is filled with capillaries). For most amphibians, 90% of their respiration is done through their skin. Frogs can also breath through the lining in their mouth which also contains capillaries, so a large amount of gas exchange can take place there. Frogs are able to breath through a pair of lungs as well, though this is used as more of a back up.
Most frogs have lungs, but their are lungless frogs. They can also breath thru their skin.
Because they are both living things.
The frog's circulatory system, like that of humans, includes the heart and blood vessels. The blood vessels include arteries, veins, and capillaries.
Frogs have smaller bones then humans.
Though frogs are amphibians and humans are mammals, they both have very similar anatomies. Both consist of organs, bones, muscles, and skin and their bodies can be separated into limbs, trunk, head, and neck. Both species contain the same basic organs.
A frogs pharynx is twice the size of a humans
in a frog it lets them have blood the same with the humans they both give blood to the body
I have heard that a frogs glottis is larger than a humans...