Biology · ANIMAL KINGDOM

Consider the following five animals: Balaenoptera, Delphinus, Pteropus, Aptenodytes, and Ornithorhynchus. Which statement correctly categorizes their taxonomic group and reproductive mode according to NCERT?

A
*Balaenoptera*, *Delphinus*, and *Aptenodytes* are viviparous aquatic mammals.
B
*Balaenoptera*, *Delphinus*, and *Pteropus* are viviparous mammals, while *Aptenodytes* and *Ornithorhynchus* are oviparous.
C
*Aptenodytes* is a viviparous mammal adapted to polar ice caps.
D
*Pteropus* and *Ornithorhynchus* are oviparous flying vertebrates.

View Answer & Solution

Correct answer · Option B

*Balaenoptera*, *Delphinus*, and *Pteropus* are viviparous mammals, while *Aptenodytes* and *Ornithorhynchus* are oviparous.

Explanation

*Balaenoptera* (Blue whale), *Delphinus* (Dolphin), and *Pteropus* (Flying fox) are viviparous mammals. *Aptenodytes* (Penguin) is an oviparous bird, and *Ornithorhynchus* (Platypus) is an oviparous mammal.

Consider the following five animals: Balaenoptera, Delphinus, Pteropus, Aptenodytes, and Ornithorhynchus. Which statement correctly categorizes their taxonomic group and reproductive mode according to NCERT?

Correct answer · Option B

Explanation

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Consider the following five animals: *Balaenoptera*, *Delphinus*, *Pteropus*, *Aptenodytes*, and *Ornithorhynchus*. Which statement correctly categorizes their taxonomic group and reproductive mode according to NCERT?

Correct answer · Option B

Explanation

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Consider the following five animals: Balaenoptera, Delphinus, Pteropus, Aptenodytes, and Ornithorhynchus. Which statement correctly categorizes their taxonomic group and reproductive mode according to NCERT?