Which one of the following group of animals is correctly matched with ...
The members of the class - Chondrichthyes are marine animals with a streamlined body and have a cartilaginous endoskeleton.
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Which one of the following group of animals is correctly matched with ...
Chondrichthyes possess cartilaginous endoskeleton.
Chondrichthyes is a class of fish which includes sharks, rays, and chimaeras. The characteristic feature of this group of animals is that they possess a cartilaginous endoskeleton, which means their skeleton is made up of cartilage instead of bone. This provides them with several advantages, such as greater flexibility, lighter weight, and faster growth.
Some other characteristics of Chondrichthyes include:
- They have five to seven gill slits on the sides of their head, which they use to extract oxygen from water.
- They lack a swim bladder, which means they must constantly swim to avoid sinking.
- They have a streamlined body shape, which helps them move quickly through the water.
- They have teeth that are constantly replaced throughout their lives.
- They have electroreceptor organs called ampullae of Lorenzini, which allow them to sense the electrical fields of other animals.
In summary, Chondrichthyes are a group of fish that possess a cartilaginous endoskeleton, among other unique characteristics.
Which one of the following group of animals is correctly matched with ...
Correct option is D ... bcz in all others there are exceptions --- Reptiles -- heart of crocodile is four chambered ... in Mammalia oviparous animals don't give birth to young ones ... the Invertebrate Chordates do not possess jaws .. Hence the option with no exception is D only .
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