ECOLOGY
ECOSYSTEM
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Mammals
|
|
|
Fish
|
|
|
Amphibians
|
|
|
Invertebrates
|
Detailed explanation-1: -So, the correct answer is ‘Chondrichthyes ’.
Detailed explanation-2: -The sharks, rays, and chimaeras make up the second group of fish, the Class Chondrichthyes.
Detailed explanation-3: -Sharks belong to the Phylum Chordata and the Sub-phylum Vertebrata. This means they have a spinal chord, notochord and a backbone (vertebrae).
Detailed explanation-4: -Even though they don’t have any bones in their bodies, sharks are classified as vertebrates. They belong to the class Vertebrata, a subphylum that includes five different classes – amphibians, birds, fish, mammals, and reptiles.
Detailed explanation-5: -Are sharks fish? Sharks are fish. They live in water, and use their gills to filter oxygen from the water. Sharks are a special type of fish known because their body is made out of cartilage instead of bones like other fish.