Which one of the following pairs of animals are similar to each other pertaining to the feature stated against them?

  • A
    $Pteropus$ and $Ornithorhynchus \implies$ Viviparity
  • B
    Garden lizard and crocodile $\implies$ Three chambered heart
  • C
    $Ascaris$ and $Ancylostoma \implies$ Metameric segmentation
  • D
    Sea horse and flying fish $\implies$ Cold blooded (poikilothermal)

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Metamerism is a characteristic feature of which of the following?

Write one example for each of the following in the space provided:
$(a)$ Cold-blooded animal.
$(b)$ Warm-blooded animal.
$(c)$ Animal possessing dry and cornified skin.
$(d)$ Dioecious animal.

Match the following and select the correct option:
Animal Characteristics
$(a)$ Pila $(1)$ Jointed appendages
$(b)$ Cockroach $(2)$ Perching
$(c)$ Asterias $(3)$ Water vascular system
$(d)$ Torpedo $(4)$ Electric organ
$(e)$ Parrot $(5)$ Presence of shell
$(f)$ Dog fish $(6)$ Placoid scales

Which of the following characteristics are $NOT$ common to both Aves (birds) and Mammalia (mammals)?
$I$ - Homeothermic (warm-blooded) animals.
$II$ - Respire through lungs.
$III$ - Possess a four-chambered heart.
$IV$ - Dioecious (sexes are separate).
$V$ - Possess hair on the skin.
$VI$ - Show internal fertilization.
$VII$ - Possess teeth.

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