Which feature is common between birds and mammals?
Both birds and mammals are warm-blooded, meaning they can regulate their body temperature.
Ref: NCERT Class 11 Biology Chapter 4: Animal Kingdom Vertebrata - Aves and Mammalia
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Which of the following characteristics is common to both amphibians and reptiles?
Both amphibians and most reptiles have a three-chambered heart, except for crocodiles, which have a four-chambered heart.
Ref: NCERT Class 11 Biology Chapter 4: Animal Kingdom Vertebrata - Amphibia and Reptilia
Which of the following is a correct feature of amphibians?
Amphibians possess a three-chambered heart with two atria and one ventricle.
Ref: NCERT Class 11 Biology Chapter 4: Animal Kingdom Vertebrata - Amphibia and Reptilia
Which of the following statements about mammals is correct?
Mammals have a diaphragm, a unique muscle that aids in respiration.
Ref: NCERT Class 11 Biology Chapter 4: Animal Kingdom Phylum Aschelminthes and Annelida