No, sharks are not tetrapods. Tetrapods are a group of vertebrates that includes amphibians, reptiles, birds, and mammals, characterized by having four limbs. Sharks, being cartilaginous fish, belong to the class Chondrichthyes and have fins instead of limbs. Thus, they are classified as fish and not tetrapods.
Yes, tetrapods are believed to be direct descendants of fish. Around 360 million years ago, some fish evolved to have limbs and eventually transitioned onto land, giving rise to tetrapods.
They are tetrapods.
Tetrapods
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Yes.
lizard The common ancestor of all modern tetrapods looked like a fish that had nubs the became limbs through evolution.
Yes, curassows are tetrapods. Tetrapods are vertebrate animals with four limbs, and curassows fit this description as they belong to the order Galliformes, which includes birds with four limbs adapted for walking and perching.
The word "tetrapod" literally translates as "four legs." Most tetrapods have four limbs, not counting the tail. There are some exceptions, snakes being the most obvious.
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all reptiles are cold blooded and are tetrapods
Tetrapods