Which of the following phyla possess an open circulatory system?

  • A
    Only $c$
  • B
    $c$ and $b$
  • C
    $a$ and $b$
  • D
    Only $a$ and $d$

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Similar Questions

The only incorrectly matched pair is:
Phylum Level of organisation

The circulatory system shown in the given figure is found in which of the following animals?

Choose the correct option for the following statements:
$(i)$ Birds are oviparous / viviparous animals showing internal fertilization.
$(ii)$ In cartilaginous fishes,gill slits are without operculum / with operculum.

Which of the following statements is false?

In which of the following is external fertilization observed?

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