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ddd [48]
4 years ago
11

The characteristics that distinguish phylum Annelida worms from simple worms include(s)

Biology
1 answer:
kolbaska11 [484]4 years ago
4 0

Answer: D. nephridia, a heart, metamerism and, in some cases, jaws.​

Explanation:

Since the organism in Phylum Annelida worms and simple worms seems very common but they have may differences, which are as following:

  • <u>Nephridia: </u>Nephridia are the paired excretory organs that occur in the Annelida phylum. They discharge metabolic water from the body, I is not present in simple worms as roundworms.
  • <u>Heart: </u>aortic arches are present in earthworms (Annelida), which pump blood out into the network of vessels that run in a circuit through the body.
  • <u>Metamerism:</u> Metarism defines the segmented body characteristic of annelids which is not found in other simple worms. It is easily visisble in earthworms.

Hence, the correct answer is D.

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