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Home Q & A Board Biology-Related Homework Help General Biology
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Coconuts Coconuts
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6 years ago
How does the structure of the cardiac chambers reflect their different functions?
 
  What will be an ideal response?

Question 2

Which fungal subgroup includes the oldest fungal lineages, are the only living fungi that make flagellated spores, and function in aquatic decomposition?
 
  a. chytrids
  b. glomeromycetes
  c. zygote fungi
  d. sac fungi
  e. club fungi
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wrote...
#1
6 years ago
Answer to q. 1

Blood circulation is driven by contracting ventricles; contraction of atria only helps fill ventricles. Atria need only generate enough force to squeeze blood into ventricles, so they have relatively thin walls. Ventricle walls are more thickly muscled because their contraction must generate enough pressure to propel blood through an entire cardiovascular circuit. The left ventricle, which pumps blood through the long systemic circuit, has thicker walls than the right ventricle, which pumps blood to the lungs and back.

Answer to q. 2

a
Coconuts Author
wrote...
#2
6 years ago
Ready for finals now Monkey
wrote...
#3
6 years ago
Good luck my friend!
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