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Why does a snake have bones and snail do not have bones?
A snake is a vertebrate belonging to the class reptilia. All vertebrates except for a few classes of fish have bones. Snails are molluscs belonging to the class gastropoda. They evolved from a boneless ancestor that they do not share with vertebrates.
What was the first class to have jaws?
The first class of animals to have jaws were the gnathostomes, which include all jawed vertebrates such as fish, amphibians, reptiles, birds, and mammals. Jaws evolved from skeletal rods that supported the gills in the early jawless vertebrates.
What class of vertebrates whale shark?
Fish
What is the order which vertebrates evolved?
Fish - amphibians - reptiles; and from the reptiles birds and mammals.
Which group of vertebrates evolved after fish?
Amphibians, then reptiles, birds, and finally mammals!
Are piranha's vertebrates?
Yes. Piranhas are fish, and all fish are vertebrates. Vertebrates include mammals, birds, fish, reptiles and amphibians.
Which shows the order in which vertebrates evolved amphibians fish birds reptiles mammals fish reptiles amphibians birds mammals amphibians fish reptiles birds mammals fish amphibians reptiles birds m?
The correct order in which vertebrates evolved is fish, amphibians, reptiles, birds, and then mammals. Fish were the first vertebrates to appear, followed by amphibians that adapted to life on land. Reptiles evolved next, leading to the development of birds and eventually mammals. Thus, the correct sequence is fish, amphibians, reptiles, birds, and mammals.
Earth's first vertebrates appeared during this period?
No, the first vertebrates evolved long before the Mesozoic. The first vertebrates, small jawless fish, evolved around 520 million years ago. Land animals had even evolved long before the Mesozoic Era.
What is a Evolved from lobe-fined fish?
Evolved from lobe-finned fish, tetrapods are a group of vertebrates that includes amphibians, reptiles, birds, and mammals. One of the key characteristics that distinguish them is having limbs with digits, which evolved from the lobed fins of their fish ancestors. This transition from water to land was a crucial step in the evolutionary history of vertebrates.
What does fossil evidence indicate about the order in which these three vertebrates evolved a bony fish with a jaw a jawless fish and a fish with leglike fins?
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Are clown fish vertebrate?
Yes, clown fish are vertebrates. They belong to the class of vertebrates called Actinopterygii, which includes all ray-finned fish with skeletons made of bone. Clown fish have a bony spinal column and internal skeleton, making them vertebrates.
Are fishes placental mammals?
No. Fish are one class of vertebrates and mammals are another. There are no "fish mammals".
