Department of Energy Argonne National Laboratory Office of Science NEWTON's Homepage NEWTON's Homepage
NEWTON, Ask A Scientist!
NEWTON Home Page NEWTON Teachers Visit Our Archives Ask A Question How To Ask A Question Question of the Week Our Expert Scientists Volunteer at NEWTON! Frequently Asked Questions Referencing NEWTON About NEWTON About Ask A Scientist Education At Argonne Worm Hearts
Name: Sarah
Location: N/A
Country: N/A
Date: N/A


Question:
Why do worms have more than one heart? Is there a record for the most hearts in a worm, if so what? If you could answer my question soon that would be very nice.



Replies:
Worms don't have the same kind of heart that animals do. Their "hearts" are really just bands of tissue that surround their vascular system (and digestive system). They have two vessels that are connected: one on the back and one on the belly and the bands pump to keep stuff moving.Our hearts are muscular cavities that actually fill with blood and squeeze that blood out and around the body.

K. Van Hoeck



Click here to return to the Biology Archives

NEWTON is an electronic community for Science, Math, and Computer Science K-12 Educators, sponsored and operated by Argonne National Laboratory's Educational Programs, Andrew Skipor, Ph.D., Head of Educational Programs.

For assistance with NEWTON contact a System Operator (help@newton.dep.anl.gov), or at Argonne's Educational Programs

NEWTON AND ASK A SCIENTIST
Educational Programs
Building 360
9700 S. Cass Ave.
Argonne, Illinois
60439-4845, USA
Update: June 2012
Weclome To Newton

Argonne National Laboratory