In which of the following are Haversian canals found?

  • A
    Mammals
  • B
    Reptiles
  • C
    Birds
  • D
    Fishes

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Based on cellular mechanisms,there are two major types of regeneration found in animals. Which one of the following is the correct example of the type mentioned?

Match the following Column-$I$ with Column-$II$ and choose the correct combination.
Column-$I$ Column-$II$
$(a)$ Earthworm $(i)$ Gizzard
$(b)$ Cockroach $(i)$ Gizzard
$(c)$ Frog $(iv)$ Cloaca
$(d)$ Rat $(ii)$ Caecum

In both vertebrates and invertebrates,the gut develops from the .......

Pupa occurs in the life cycle of:

Which of the following is a common feature in both earthworm and cockroach?

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