Frogs are very easily dehydrated and need to keep their skin moist permanently. To support this the hydrophyle (waterbinding) mucus is sectreted.
Mucous glands
Yes. Frogs (and toads) have mucous glands all over their skin to help keep their skin lubricated. If frogs do not keep their skin moist they will dry out and die. In some species, such as the poison dart frogs, the secretions from these glands are highly toxic. All frogs and toads have a degree of these poisons, even if it is only in retrace amounts, but in some species the concentration of toxins is much greater, providing an effective defence mechanism. The mucous glands in frogs' and toads' skin is different from the parotid glands which some species of toads have just behind their eyes, which contain irritants and other toxins to deter predators.
Frogs have a highly efficient respiratory system that allows them to absorb oxygen through their skin and utilize their buccal pumping mechanism to circulate air through their lungs. This combination of adaptations allows frogs to thrive despite having relatively small lungs.
The mucous the frog secretes from its skin typically has a foul smell and is usually a poison to help ward off predators.
Yes, chlorine can harm or kill frogs. Frogs have permeable skin that allows them to absorb substances in their environments, including chemicals like chlorine. Exposure to chlorine can damage a frog's skin and mucous membranes, leading to illness or death.
Frogs have underdeveloped lungs, so they must have a moist skin so that oxygen can diffuse into their bodies. Their lungs do not function well enough to be used on their own.
Correct. Frogs have smooth skin which is slippery and delicate, but toads have drier skin with warts.
Frogs have wet, moist skin. Their skin is not scaly, but it is smooth.
the mucous traps inspired dust, bacteria, and other debris.
the mucous traps inspired dust, bacteria, and other debris.
Frogs have smoother skin. Frogs have slippery and delicate skin, but toads have drier skin with warts.
Frogs are covered in skin that is typically smooth and moist. Some frogs may have rough or bumpy skin, depending on the species. Their skin provides protection from predators and helps with respiration.