how many aortic arches (hearts) does an earthworm have ?
The earthworm does not have a heart. The organ in an earthworm that acts as a heart is called the aortic arch. An earthworm has five aortic arches
how many aortic arches (hearts) does an earthworm have ?
The earthworm does not have a heart. The organ in an earthworm that acts as a heart is called the aortic arch. An earthworm has five aortic arches