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Which of the following pair is unmatched for the animals of Reptilia class ? A. Temperature constant and external fertilisation B. Sexes separate and lack of metamorphosis C. 12 pairs of cranial nerves and rough skin D. Skull monochondylic and skin with scales?
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Which of the following pair is unmatched for the animals of Reptilia c...
Unmatched Pair for Animals of Reptilia Class

The correct answer is B. Sexes separate and lack of metamorphosis.

Explanation:

Temperature constant and external fertilisation:
- Reptiles are ectothermic, which means their body temperature is regulated by the environment.
- They lay eggs with external fertilisation.

12 pairs of cranial nerves and rough skin:
- Reptiles have 12 pairs of cranial nerves, which are responsible for various functions such as smell, vision, and hearing.
- Their skin is covered with scales, which provide protection and prevent water loss.

Skull monochondylic and skin with scales:
- Reptiles have a monochondylic skull, which means their skull is made up of a single bone.
- Their skin has scales, which are made up of keratin and provide protection.

Sexes separate and lack of metamorphosis:
- Reptiles have separate sexes, which means they have distinct male and female reproductive organs.
- Unlike amphibians, they do not undergo metamorphosis during their life cycle.

In conclusion, the unmatched pair for animals of Reptilia class is B. Sexes separate and lack of metamorphosis.
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Which of the following pair is unmatched for the animals of Reptilia class ? A. Temperature constant and external fertilisation B. Sexes separate and lack of metamorphosis C. 12 pairs of cranial nerves and rough skin D. Skull monochondylic and skin with scales?
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