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An earthworm does not have any heart at all. But they do have an organ that acts similarly to a heart and is usually called a heart just for simplicity's sake, although is is also called an aortic arch. Earthworms have five of these arches. In between each arch is a gland that helps the worm digest calcium, which it gets from eating a lot of dirt. size The heart and calciferous gland section makes up less than five percent of an earthworm's total body length, no matter how big the individual worm gets.
Function
The aortic arches (hearts) help pump blood around the body of the earthworm in a similar way to animals that have only one multi-chambered heart. Worm "hearts" don't have chambers. Worms also don't have lungs. They absorb oxygen through their skin and then it gets into their blood vessels. The dorsal blood vessel does a bit of the pumping work, with the hearts helping to keep blood pressure steady.
by' Katie Burgess
What else can I help you with?
Why does the worm have multiple hearts?
Worms have 5 hearts. Worms have an organ that behaves like a heart, an aortic arch, they have five arches.
What species having 5 hearts?
worms
How many hearts are there in an earthworm?
5
Which animals have multiple hearts?
I think worms,remember insects are animals! The number of aortic arches (hearts) varies for specie to specie. The common earth worm has 5 'hearts'!
How many hearts does the worm have?
5, like all worms.
Do worms have heart?
Technically, they don't. There are five objects similar to hearts that are called aortic arches. I'm not positive all types of worms have these aortic arches but this is the most probable answer.
Do earthworms have 16 hearts?
No!! the earth worm has 5 hearts
Do worms have 5 hearts?
No, worms do not have 5 hearts. Most worms have a simple circulatory system with vessels that pump blood, but they typically have a single or double main pumping vessel called an aortic arch that acts like a heart.
What is the animals that has four pair of heart?
Earth worms have 4 pairs of heart. pheretima has 4 pairs of hearts.
Where are worms noses on their body?
worms don't have noses at all!they hardly have eyes,ears, and mouth!there's something amazing-they have 5 hearts!5haerts!
What does the aortic arches in worms?
There are 5 aortic arches, they are "hearts". They pump blood around the worm and help digestion.
How many big worms are on earth?
THE ANSWER IS 1.4 MILLION WORMS ARE IN THE EARTH!! ISN'T THAT ALOT!! ACTUALLY THATS NOT TRUE CUZ THE PERSON SAID BIG WORMS AND THERE ARE ONLY 5 BIG WORMS IN THE WORLD THEY ARE A very rare species!!!!!!!!!!!!!!!
