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The most primitive vertebrates are members of the group of a jawless fishes b amphibians c artilaginous fish d birds e bony fish?
A: jawless fish
The most primitive vertebrates are members of the group of?
a) jawless fishes.
What is the huge group of fishes called?
A large group of fishes is often called a school.
Give you some example of jawless fish?
Most fish are not jawless. There is a small group of very primitive fish called Jawless fish (Agnatha). However, they make up a very small proportion (<1%) of the fish species on earth. Jawless fish are things like lamprey and hagfish. All other fish, like trout, salmon, tuna, sharks, rays, cichlids, goldfish, etc, etc, have jaws. See the related link for more information on the primitive jawless fish.
Name for group of jawless fish?
A group of jawless fish is commonly referred to as "agnatha."
Do all chordates have jaws and limbs?
Well, no they don't... There's a group of chordates called Agnatha which basically contains all the jawless chordates. And there are obviously limbless chordates present, the fishes and the snakes being the most well-known of the examples...
What are ostracoderms?
Ostracoderms were a group of extinct jawless fishes that lived from the late Cambrian to the end of the Devonian period. They were characterized by their bony armor covering their bodies, lack of jaws, and typically, had a cartilaginous skeleton. Ostracoderms are considered to be among the earliest vertebrates.
How do you call group of fishes?
Groups of fish is called a shoal.
What was the first group of muscled animals?
The first group of muscled animals were likely jawless fishes, which evolved around 500 million years ago. These early vertebrates had simple muscle structures that allowed them to swim and move efficiently in water.
Which was the first organism with a vertebra?
The first vertebrates (as far as is known) were a group of extinct*, jawless, heavily-armored fishes called Ostracaderms. *There are a few zoologists who feel that the hagfish and possibly the lamprey and slime hag are ostracaderms, but I disagree. I'm not at all sure that the hagfish and slime hag are true vertebrates.
What are two adaptations that enabled early fishes to dominate the oceans?
The ability to lay hundreds of eggs. And probably the fact that they adapt to anywhere because there aren't that many different terrains underwater
Which group of animals can be group as school?
A school of fishes.
