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Q: Earth-worms belong to the phylum:
  • A. Protozoa
  • B. Cnidaria
  • C. Annelida
  • D. Mollusca
Correct Answer: Option C - Earthworm belongs to phylum Annelida, Annelids are segmented worms, their bodies are sectioned, creating the ridged or ring appearance that gives the 'ring worms' of this phylum their name. Earthworm exhibit a tube within a tube body plain, are externally segmented and usually have setae on all segments. Earthworms are commonly found in soil, eating a wide variety of organic matter.
C. Earthworm belongs to phylum Annelida, Annelids are segmented worms, their bodies are sectioned, creating the ridged or ring appearance that gives the 'ring worms' of this phylum their name. Earthworm exhibit a tube within a tube body plain, are externally segmented and usually have setae on all segments. Earthworms are commonly found in soil, eating a wide variety of organic matter.

Explanations:

Earthworm belongs to phylum Annelida, Annelids are segmented worms, their bodies are sectioned, creating the ridged or ring appearance that gives the 'ring worms' of this phylum their name. Earthworm exhibit a tube within a tube body plain, are externally segmented and usually have setae on all segments. Earthworms are commonly found in soil, eating a wide variety of organic matter.