Tadpoles have long,coiled intestines while adult frogs have relatively short,small intestive.Why?
116485
cause that word "long" is relative, tadpoles have seemingly long intestines compared to their tiny bodys, hence it's all wrapped up, and the same intestines are seemingly small compared to the frogs bigger body.
36248
i dont know if this is true..but i heard once when i was a kid that tadpoles draw the nutrients they need from theyre little tails. i heard that its the same concept as little creatures eating their shells after breaking out of them. This might be urban legend but it makes sense to me! what else happens to their little tails? and please..nobody correct me or i will feel really really stupid for believing this if its not true
562774
Most amphibians, such as frogs and toads, are not very fast so they cannot simply chase down their food like lions. They have camouflage and use it to hide and remain still until the fly, or other animal they wish to eat, is within range and then they can get their meal.
832993
You mean length??  The large intestine is about 1.5 metres long and the small intestine is about 20 feet long!
715271
The frog skeleton is adapted for jumping, and has a well-developed pair of hindlimbs, and a special structure, the urostyle, which represents a number of fused caudal (tail) vertebrae. The urostyle is capable of withstanding stress transmitted to the vertebral column from jumping. Notice that the vertebral column is short and inflexible, so it does not bend during jumping.\n\nThe femur and tibiofibula are both long bones which are important for jumping. The tibiofibula represents a fusion of two bones, the tibia and the fibula; this fusion results in a stronger structure. The humerus and radius/ulna are not as elongate as the bones of the hindlimb, since they do not provide the major propulsive force in frog locomotion.♥
152552
I hope that's not a question one of your teachers made. That would be depressing. \nKurdiatcha is right :)\nBut technically speaking, adult sea squirts don't have spinal cords, a lancelet would be a better example. \nWow, I've just done a quick search and there's a wikipedia article (http://en.wikipedia.org/wiki/Tunicata) stating that the notochord is a "primitive spinal cord". Maybe my English vocabulary is wrong, but they seem to have forgotten that primitive chordates have both a notochord and a spinal cord.
585037
Most amphibians eat insects, however their are alos species that prey primarily on fish, crustations and even mammals. \n\nCrocodiles are NOT amphibians. Thay are amphibious which is quite a different thing.
605539
http://en.wikipedia.org/wiki/Frogs
959845
Well I have read that a frog's tongue actually is directed down its throat when not in use, this is becasue the base of the tongue is actually attached at the front of the mouth, this would give it a downward pointing orientation when inside the mouth, so it would only make sense that the tongue would be slightly upward when outside the mouth. You have to remember that it is not as soft and evolved as the tongue of a chameleon, the frog's tongue is somewhat more rigid.
468432
they have sex and then lay eggs which are called spawn. the larvae or tadpoles emerge and metamorphose into frogs (they grow legs).\n\nthe tadpoles are totally aquatic and have gills, which are lost as metamorphosis progresses. in salamanders the larval stage is called a axylotle and can remain in the larval stage for many yaers until a hormonal change in the water stars the change in development, this is a tactic enebling the salamnder to wait until the optimum time to reproduce, and cut out the chance of progressing to adulthood with no mates around to fertilize.
1100762
the tadpole grows legs\n\nthe tadpole grows lungs\n\nuh not sure the third
805431
the amphibian deposits its egg with all the nutrients it will ever have in its yolk.\n\nmammals carry their eggs and the maturing baby, thus providing it with nutrients via the placenta.  on a side note, monotremes, or egg-laying mammals provide their young with big yolks
794330
hey i am not sure whether this is the right answer....but it was worth a try....\n\n \nRana pipiens, also known as the northern leopard frog, is a very important frog in the ecosystem. The northern leopard frog is a key animal in the food web. Frogs are more important to human survival and our current way of life than you may think! Frogs are so important that ecologists consider them to be bioindicators. In other words, scientists consider the health of a frog population to be a reflection of the health of the entire ecosystem (Encarta, 2001).\n\nDistribution\nThe northern leopard frog, R. pipiens, is common in North America, inhabiting twenty-six states and much of Canada (see adjacent map).\n\nHabitat\nRana pipiens live in a wide range of habitat, from open water and marshes to deserts and mountains (Frogs.org, 2000-2001).\n\nPhysical Characteristics\nThe northern leopard frog is medium in size, averaging from two to five inches long. They are green, brown, or both and have large dark irregular spots covering the dorsal part of their body (NPWRC, 2001). The skin covering R. pipiens is moist and smooth, and contains glands that secrete mucus in order to keep the skin from drying out. Northern leopard frogs also have glands in their skin that secrete poisons, which are strong enough to help them escape from their predators but are not harmful to humans (Encarta, 2001). Rana pipiens have eyes that are very keen, helping them not only capture prey but also to identify danger in their surroundings (Encarta, 2001). The northern leopard frog also has very powerful hind legs which are the main source of power in swimming and jumping. Also useful in swimming are the frog's webbed hind feet (Frog, 2001).\n\nFood and Feeding\nThe diets of tadpoles and froglets differ from those of adult R. pipiens, with the young consuming herbivory such as algae as well as microscopic animals. Adults feed largely on insects, but also slugs, snails, and smaller vertebrates such as chorus frogs (Harding 156-157 and Donegan, 1996).\n\nRelationship to other organisms in the ecosystem\nRana pipiens are common prey of birds such as herons, reptiles such as snakes, and mammals (including humans) (Donegan, 1996). Rana pipiens play an important role to humans. Besides being a source of food, frogs are used at every stage in their life for scientific study (Donegan, 1996). Furthermore, frogs play a key role in integrative pest management, eating agriculturally destructive insects.\n\nReproduction\nCopulation occurs in the water between March and June. The females release eggs while swimming and the male, who attaches himself to the female with specialized thumbs, fertilizes the eggs. The fertilized eggs are then attached to either underwater plant material or simply placed on the bottom of the pond (Frogs.org, 2001). Each female lays up to 3,000 eggs, which hatch 10-20 days after fertilization (Rasmussen, 2001).\n\nDevelopment and Lifespan\nThe frog life cycle (shown to the left) is fairly simple. The frogs begin their lives as eggs, which are laid in clumps. When the eggs hatch the baby frogs are tadpoles and do not have limbs or lungs, like the adult frog. The tadpole undergoes metamorphosis, growing hind legs first, then front legs, and at the same time, developing a well defined head. The gills are replaced with lungs as the froglet adapts to life on land. On land the frog continues to lose its tail and grow in size. Rana pipiens reach sexual maturity in two or three years (Encarta, 2001).\n\nBehavior\nRana pipiens are mostly nocturnal. Rana pipiens travel far distances away from water, but they must return to breed. In order to escape predators the northern leopard frog leaps into the water and buries itself in the mud or, if on land, takes several jumps into the air and then dives under vegetation for cover (Harding, 157). During the winter months northern leopard frogs hibernate.\n\nCommunication\nThe male northern leopard frog uses his croak to att
167281
Your question does not make sense!\n\nFrog muscles are arranged like those in other vertebrates and will have similar names. For example your calf muscle is the gastrocnemius, it is the same in the frog and this is the tasty bit you might eat when served frogs legs.
793731
These frogs are carnivores and feed primarily at night, feasting on crickets, moths, flies, grasshoppers, and sometimes even smaller frogs! Basically, they will eat any insect or food item that they can fit into their mouths. In captivity, babies eat mostly fruit flies and pinhead crickets. \n\nHang on and I'll find some pics of the bugs...\nhttp://images.google.com/images?hl=en&q=crickets\nhttp://images.google.com/images?svnum=10&hl=en&lr=&q=moths\nhttp://images.google.com/images?svnum=10&hl=en&lr=&q=flies\nhttp://images.google.com/images?svnum=10&hl=en&lr=&q=grasshoppers\nhttp://images.google.com/images?svnum=10&hl=en&lr=&q=fruit+flies\nhttp://images.google.com/images?svnum=10&hl=en&lr=&q=pinhead+crickets\nhttp://images.google.com/images?svnum=10&hl=en&lr=&q=small+frogs
1133075
Because they are different. A frog lives mainly in water, and a toad lives on land. They are not the same kind of animal. You might as well ask why do dogs bark and cats meow? Obviously, that's because that is what they do!!\n\nHope you agree.
996498
frogs like to swim in the water and are more aquatic than terrestrial, but they have very well developed meaty leg muscles, (both the calf and the thighs) and many muscles the same as humans which they can use for hopping too. They just use their hind legs for hopping though.  Those puny little arms-hands-muscles are not used for much other than propping themselves up when sitting, or a male may squeeze a female when he is on her back mating with her.