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Amphibian Questions and Answers (Q&A)

The process that amphibians undergo from larva to adult is known as metamorphosis

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Reptiles and amphibians play a significant role in the ecosystem. Amphibians are one of the primary connections in many ecosystem food webs. In temperate and tropical regions, amphibians can exceed all other terrestrial vertebrates such as birds, mammals, and reptiles. Amphibians are important predators of invertebrate. Frogs, for example, control the insect population, and they are a food source for many larger animals.

Amphibians matter because a significant decline in amphibian diversity can cause a major reduction in the health and sustainability of ecosystems, and this can lead to a deterioration of the quality of human life. Amphibians play an integral role in pest control, water filtration, and medical research.

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Most amphibians live on the ground, in wetlands, or forests; however, some live-in trees, and a few species can survive in the deserts and other dry habitats. Most kinds of amphibians live in warm, damp climates. They usually live in a swamp-like area, a place with moist land and warm water. They live in wet, humid areas. Amphibians are creatures which spend one part of their life in Waterland, and part of their life on dry land.

This is because amphibians are cold water animals. Except for Antarctica, frogs inhabit all the continents of the world. They are permitted to exist in different surroundings, ranging from the hottest to coldest. Frogs tend to favor climates that keep their skin moist. Some frogs such as tree frogs live in trees. They favor terrestrial settings.

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One of the main differences between amphibians and reptiles is that juvenile amphibians undergo metamorphosis during which they change from using gills for respiration to using their lungs. Another significant difference is that reptiles have scaly skin, while amphibians have moist skin. Reptiles reproduce by leathery or soft hard eggs laid on land or maintained inside the body until hatching.

Amphibians reproduce soft eggs typically laid in water or media. The amphibian egg is a yolk sac enveloped in one or more layers of a certain jelly-like covering. The reptile egg is self-contained and protects the embryo from dehydration. Reptiles are alligators, lizards, snakes, and turtles. Amphibians are frogs, toads, salamanders, and newts.

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The order Caudata, salamanders, and newts; Anura, frogs and toads; and apoda, legless caecillians. Amphibians belong to subphylum vertebrae of the Chordata phylum. They are cold-blooded, which means they have no control over their body temperature, and they are dependent upon the temperature of their surroundings to keep them warm.

Their term, ‘Anura' means the absence of tail; which implies that the species belonging to this class lacks a tail, which is the largest group out of the three. Species of this order are four-legged and sometimes vocal. The term Caudata has been derived from the Latin word cauda, meaning tail, which implies that the species under this amphibian category are tailed species. This characteristic differentiates these amphibian species from those under the order Anura.

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Many amphibians, such as frogs undergo metamorphosis. They begin life in the water and live on land as adults. They have moist, scaleless skin and they are cold blooded. They absorb water and undergo gas exchange through their skin. Amphibians adjust to the temperature of their surroundings by becoming that temperature.

Their skin absorbs water and oxygen, but they are vulnerable to dehydration. They are often found near ponds, marshlands, swamps, and other areas where fresh water is available. Some amphibians are poisonous. They can also change the color of their skin.

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Reptiles and amphibians are distinctly related, but several primary distinguishing features clearly separate the two. They often inhabit different environments, and they have different life stages. At the basic level, amphibians must spend some of their time in the water, whereas reptiles do not have this stipulation. For reptiles, it is not essential for them to stay in the water to stay alive.

Lizards and snakes are ideally suited to dry environments such as deserts, and they rarely encounter moist areas. By contrast, many amphibians must remain moist to breathe. Although they do have lungs, they also take in oxygen through their skin. The skin means that they lose moisture easily as well, and some even die if their skin dries out completely.

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Amphibians reproduce with either external or internal fertilization. The loud croaking of frogs is their mating call. Amphibians lay their eggs in water so that they won't dry out. Their eggs are usually covered in a jelly-like substance. The jelly helps keep the eggs damp and offers protection from predators.

They tend to lay a large number of eggs in the same place at the same time, which helps to assure that the eggs will be fertilized and at least some of the embryo will survive. Once the eggs have been laid, most amphibians are done with their parenting. Mating for amphibians usually occurs in freshwater

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Salamanders can regrow new tissue to replace entire limbs and regenerate parts of their major organs, which is an ability that lies in the immune systems. The salamander reveals immune cells called macro phases which are part of the early stages of regenerating lost limbs. Salamanders and newts display the highest regenerative ability among tetrapods.

Lizards can also regrow lost limbs, as well as frogs. Lizards can lose their tails on purpose, and they can regrow them. When a leg or tail is amputated, the newt generates a cell mass called the blastema, and the new fully functional limb is regenerated.

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The Golden Poison Frog or golden dart frog is a dangerous epidemic on the Pacific Coast of Columbia. The adults are brightly colored; however, they lack the dark spots present on most frogs. The frog's color pattern is aposematic, which warns the prey of its toxicity. The frog has small adhesive disks on its toes, which aid the climbing of plants.

It also has a bone plate in it’s lower jaw, which presents the appearance of having teeth. These frogs also range in color. They can be mint green, yellow and orange. The skin is poisonous. The poison prevents it’s victim’s nerves from transmitting impulses, which can lead to heart failure.

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