Timeline for How did the cardiovascular system evolve?
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
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| Jul 28, 2016 at 19:13 | vote | accept | asparagus | ||
| Jul 28, 2016 at 16:41 | history | edited | user151841 | CC BY-SA 3.0 |
added 80 characters in body
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| Jul 28, 2016 at 16:40 | comment | added | user151841 | @A.L Sure! Here is a graphic of the evolution of lungs: images.slideplayer.com/13/4156687/slides/slide_2.jpg To get this, I just did a google image search for "evolution of the lungs". For the evolution of actual bloodtubes from non-tube systems, it's a little more tricky. You could start at this page: en.wikipedia.org/wiki/Flatworm#Distinguishing_features see the "more advanced bilaterans" column | |
| Jul 28, 2016 at 16:28 | comment | added | A.L | the evolution of the human heart from simpler, working system How did this simpler system appeared? the information is readily out there Can you please share some links to that pages? | |
| Jul 28, 2016 at 15:07 | history | answered | user151841 | CC BY-SA 3.0 |
