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Earn +20 ptsQ: How many aortic arches does a earthworm have?
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How many hearts does an earthworm have?
An earthworm does not have any heart at all. But they do have an organ that acts similar to a heart and is usually called aortic arc.
What is the function of the Aortic Arches?
the aortic arches carry blood from the dorsal blood vessel to the ventral blood vessel
How can a earth worm have hearts?
There are actually 5 hearts in an earthworm. Correction: They technically aren't hearts they are considered aortic arches
How many hearts are there in an earthworm?
5
Why does the earthworm belong to the phylum anneldia?
The annelids are segmented worms. Although some annelids have appendages and primitive sight organs (photo-reactive pigment spots), earthworms do not. Earthworms do, however, have the typical annelid neural ganglia, and the annelid circulatory system, including the aortic arches that function as the worm's heart. And, of course, earthworms are segmented.
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