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Which of the following features is not present in the phylum-Arthropoda?

  • Metameric segmentation

  • Parapodia

  • Jointed appendages

  • Jointed appendages


B.

Parapodia

Parapodia are present in annelids.

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Which of the following features is not present in Periplaneta americana?

  • Indeterminate and radical cleavage during embryonic development

  • Exoskeleton composed of N-acetylglucosamine

  • Metamerically segmented body

  • Metamerically segmented body


Which of the following characteristic features always holds true for the corresponding group of animals?

  • Viviparous Mamalia
  • Posess a mouth with an upper and lower jaw Chordata
  • 3-chmbered heart with one incompletely divided ventricle Reptilia
  • Cartiliginous- endoskeleton Chondrichthyes

The eyes of Octopus and eyes of cat show different patterns of structure, yet they perform a similar function. This is an example of 

  • homologous organs that have evolved due to convergent evolution

  • homologous organs that have evolved due to divergent evolution

  • analogous organs that have evolved due to convergent evolution

  • analogous organs that have evolved due to convergent evolution


Which one of the following characteristics is not shared by birds and mammals?

  • Breathing using lungs

  • Viviparity

  • Warm-blooded nature

  • Warm-blooded nature


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