Evolution , Biology

What benefits led to natural selection of a two-circuit pump function of the heart
a) One circuit to go from the heart to the body and one from the heart to the lungs
b) One circuit to go from the heart to the body and one from the heart to the gills
c) One circuit to go from the heart to the lower body and one from the heart to the head
d) One pump to blood to the tissues and one pump to pump it back
e) To pump twice as much blood
Posted Date: 12/9/2012 7:15:40 PM | Location : Netherlands

Related Discussions:- Evolution , Assignment Help, Ask Question on Evolution , Get Answer, Expert's Help, Evolution Discussions

Write discussion on Evolution
Your posts are moderated
Related Questions
ENZYME INHIBITION Enzymes are often inhibited by  the presence of  suitable inhibitors. Much of current drug therapy  is based  on this. Basically, there  are  three major  cla

Explain the Associated procedure of Reinforcement of Patch? Associated Procedures :  Coronary artery bypass grafting and repair of mitral valve are also carried out. P

P e s t e des petits ruminants It is also known as goat plague or kata resulting in high fever, diarrhoea and respiratory distress. In India, the disease was reported in th

Define Water of hydration and Bound Water - Water Found in Food? Water of hydration: This moisture is chemically bound to the constituents of the material and in most cases w

Explain Acyclovir Available in topical, oral, and intravenous (IV) formulations, acyclovir is used to treat herpes simplex virus (HSV) and varicella-zoster virus (VZV) infectio

What are the differences between the two domain

URETERS From hilum of each kidney emerges out a tube. Wall is thick. Lumen is star shaped. 28 cm. long. Transitional epithelium present in wall. Open in to urinary bla

Which is the brain region responsible for the regulation of breathing and blood pressure? The neural regulation of breathing, blood pressure and other physiological parameters

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4