Ranas
Frogs are animals skin smooth and soft, bulging eyes that can see in almost any direction and external eardrums. Adults have no tail. Most of them have long hind legs that enable them tomake great leaps, and webbed feet that make them excellent swimmers.
During his lifetime the frog undergoes a complete metamorphosis, going through the stages of egg, larval stage like a fish andfinally the adult stage. They lay their eggs in water, where they give rise to tadpoles (larvae of short body), in early spring or summer, what stage the show gills and tail. With the development, thetadpole loses its tail, develops legs, and finally leaves the water in the form of adult frog.
The frogs are animal of flat and soft skin, jumping eyes that you/they can see almost in anyaddress and external auditory eardrums. The adults lack line. Most of they have long back paws that allow them to give big jumps, and webbed causes that transform them into excellent swimmers.
Duringtheir life the frog experiences a complete metamorphosis that crosses the egg phases, a phase similar larvaria to a fish and the end adult's phase. They put their eggs in the water, where they giveplace to tadpoles (larvas of short body), at the beginning of the spring or the summer, phase in which you/they present gills and line. When leaving developing, the tadpole loses the line, it developsthe paws and, finally, it leaves the water in form of mature frog.
Los Peces
Fish, aquatic vertebrate animal that usually has gills in adulthood and whose limbs, when present, take theform of fins.
The fish represent about half of all modern vertebrates known. Scientists recognize an estimated total of 25,000 living species
The body of most fish is covered with a layer ofscales, bony or horny plates arranged in overlapping rows in which the free end of a scale is superimposed on top of the next.
Fish, aquatic vertebrate animal that usually has gills in the mature...
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