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Which of the following characteristic features always holds true for the corresponding group of animals? [2016]
- a)Cartilaginous Chondrichthyes endoskeleton
- b)Viviparous Mammalia
- c)Possess a mouth Chordata with an upper and a lower jaw
- d)3 - chambered heart Reptilia with one incompletely divided ventricle
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Which of the following characteristic features always holds true for t...
(a) Chondrichthyes always have cartilaginous endoskeleton. Most mammals are viviparous, giving birth to live young. However, the five species of monotreme, the platypuses and the echidnas, lay eggs. Chordates have jawless animals (Agnatha) as well. Most reptiles have 3 chambered heart. Crocodilians have 4 chambered hearts. Turtles have 3 chambered heart but with an incomplete wall in the single ventricle, so their hearts are functionally 4 chambered.
Most Upvoted Answer
Which of the following characteristic features always holds true for t...
Cartilaginous endoskeleton:Chondrichthyes always holds true for the corresponding group of animals.
Explanation:
Chondrichthyes, also known as cartilaginous fishes, are a group of animals that have a cartilaginous endoskeleton. This means that their skeletons are made of cartilage instead of bone. Some common examples of Chondrichthyes include sharks, rays, and skates.
Other options:
b) Viviparous: Mammalia - while most mammals are viviparous (giving birth to live young), there are some exceptions such as monotremes (laying eggs) and marsupials (giving birth to underdeveloped young).
c) Possess a mouth with an upper and a lower jaw: Chordata - while many Chordata have a mouth with an upper and lower jaw, there are some exceptions such as hagfishes and lampreys which have a circular sucking mouth instead.
d) 3-chambered heart with one incompletely divided ventricle: Reptilia - while most reptiles have a 3-chambered heart with one incompletely divided ventricle, there are some exceptions such as crocodilians which have a 4-chambered heart.
Explanation:
Chondrichthyes, also known as cartilaginous fishes, are a group of animals that have a cartilaginous endoskeleton. This means that their skeletons are made of cartilage instead of bone. Some common examples of Chondrichthyes include sharks, rays, and skates.
Other options:
b) Viviparous: Mammalia - while most mammals are viviparous (giving birth to live young), there are some exceptions such as monotremes (laying eggs) and marsupials (giving birth to underdeveloped young).
c) Possess a mouth with an upper and a lower jaw: Chordata - while many Chordata have a mouth with an upper and lower jaw, there are some exceptions such as hagfishes and lampreys which have a circular sucking mouth instead.
d) 3-chambered heart with one incompletely divided ventricle: Reptilia - while most reptiles have a 3-chambered heart with one incompletely divided ventricle, there are some exceptions such as crocodilians which have a 4-chambered heart.
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Community Answer
Which of the following characteristic features always holds true for t...
Reptiles have 3-chambered heart except crocodiles.
Mammals are viviparous except prototherian mammals;
chordates have jaws except protochordates and cyclostomes.
in option a the statement is correct
Mammals are viviparous except prototherian mammals;
chordates have jaws except protochordates and cyclostomes.
in option a the statement is correct
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Which of the following characteristic features always holds true for the corresponding group of animals? [2016]a)Cartilaginous Chondrichthyes endoskeletonb)Viviparous Mammaliac)Possess a mouth Chordata with an upper and a lower jawd)3 - chambered heart Reptilia with one incompletely divided ventricleCorrect answer is option 'A'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following characteristic features always holds true for the corresponding group of animals? [2016]a)Cartilaginous Chondrichthyes endoskeletonb)Viviparous Mammaliac)Possess a mouth Chordata with an upper and a lower jawd)3 - chambered heart Reptilia with one incompletely divided ventricleCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following characteristic features always holds true for the corresponding group of animals? [2016]a)Cartilaginous Chondrichthyes endoskeletonb)Viviparous Mammaliac)Possess a mouth Chordata with an upper and a lower jawd)3 - chambered heart Reptilia with one incompletely divided ventricleCorrect answer is option 'A'. Can you explain this answer?.
Which of the following characteristic features always holds true for the corresponding group of animals? [2016]a)Cartilaginous Chondrichthyes endoskeletonb)Viviparous Mammaliac)Possess a mouth Chordata with an upper and a lower jawd)3 - chambered heart Reptilia with one incompletely divided ventricleCorrect answer is option 'A'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following characteristic features always holds true for the corresponding group of animals? [2016]a)Cartilaginous Chondrichthyes endoskeletonb)Viviparous Mammaliac)Possess a mouth Chordata with an upper and a lower jawd)3 - chambered heart Reptilia with one incompletely divided ventricleCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following characteristic features always holds true for the corresponding group of animals? [2016]a)Cartilaginous Chondrichthyes endoskeletonb)Viviparous Mammaliac)Possess a mouth Chordata with an upper and a lower jawd)3 - chambered heart Reptilia with one incompletely divided ventricleCorrect answer is option 'A'. Can you explain this answer?.
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