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Get Answers to all your Questions
Which of the following represents the correct combination without any exception?
|
Characteristics |
Class |
|---|
- Option 1)
Sucking and circular mouth; jaws absent, integument without scales; paired appendages
Cyclostomata
- Option 2)
Body covered with feathers; skin moist and glandular; fore-limbs form wings; lungs with air sacs
Aves
- Option 3)
Mammary gland; hair on body; pinnae; two pairs or limbs
Mammalia
- Option 4)
Mouth ventral; gills without operculum; skin with placoid scales; persistent notochord
Chondrichthyes
Answers (1)
Classification of Vertebrata -
It has two divisions and further classes.
1. Division Agantha (jawless)
Class Cyclostomata
2. Division Gnathostomata →
1. Superclass Pisces (bear fins)
1. Class Chondrichthyes
2. Class Osteichthyes
2. Superclass Tetrapoda (bear limbs)
1. Class Amphibia
2. Class Reptilia
3. Class Aves
4. Class Mammals
-
Option 1)
|
Sucking and circular mouth; jaws absent, integument without scales; paired appendages |
Cyclostomata |
Incorrect
Option 2)
|
Body covered with feathers; skin moist and glandular; fore-limbs form wings; lungs with air sacs |
Aves |
Incorrect
Option 3)
|
Mammary gland; hair on body; pinnae; two pairs or limbs |
Mammalia |
Incorrect
Option 4)
|
Mouth ventral; gills without operculum; skin with placoid scales; persistent notochord |
Chondrichthyes |
Correct
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