What is common between parrot, platypus, and kangaroo?

  • A
    Toothless jaws
  • B
    Functional post-anal tail
  • C
    Oviparity
  • D
    Homoiothermy

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What does the term 'Frugivorous' mean?

Identify the type of digestive system in the organisms shown below.

$A$: In $Aves$ and $Mammals$, the heart is four-chambered.
$R$: In $Mammals$, the aortic arch curves to the left.

Define the following terms:
$(i)$ Poikilothermous
$(ii)$ Homoiothermous

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