They do, otherwise, how would they pump blood? They have 5 hearts, according to wikipedia and several science websites. (You can look it up if you need proof.)
because it is hard to dig the way they do with arms, feet, legs or toes
yes
Because they were made like that.
5, like all worms.
It was speculated that some dinosaurs may have had two hearts to help pump their blood around. Earth worms supposedly have six hearts.
Of course that's why if you cut one in half it will still live.
i dont know. you tell me.
Worms have 5 hearts. Worms have an organ that behaves like a heart, an aortic arch, they have five arches.
worms
they are hearts worms
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.
Yes, just not the same design as a Human heart
Because they were made like that.
worms mollusks
They act as the hearts of annelids (segmented worms)
5, like all worms.
they have multiple segments and hearts silly
It was speculated that some dinosaurs may have had two hearts to help pump their blood around. Earth worms supposedly have six hearts.
earth worms dont like light