Choose the correct combination of the following:

  • A
    Annelida and Porifera - Phyla
  • B
    Aves and Chordata - Classes
  • C
    Mollusca and Hydrozoa - Classes
  • D
    Oligochaeta and Arthropoda - Phyla

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Similar Questions

Match the following columns and select the correct option.
Column $-I$ | Column $-II$
$(a)$ $6-15$ pairs of gill slits | $(i)$ Trygon
$(b)$ Heterocercal caudal fin | $(ii)$ Cyclostomes
$(c)$ Air Bladder | $(iii)$ Chondrichthyes
$(d)$ Poison sting | $(iv)$ Osteichthyes

Mention one example each for animals with a chitinous exoskeleton and those covered by a calcareous shell.

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?

What is common among bed bugs,leeches,and mosquitoes?

Which one of the following is not a living fossil?

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