Tagged Questions
1
vote
2answers
68 views
What organs are absolutely needed by the human body?
The title is my question: what organs are absolutely needed (fatal if injured/removed) by the human body and perhaps animals in general?
I'm not asking which organs are mechanically replaceable, but ...
1
vote
2answers
77 views
How to know if a woman is fertile without actually making her pregnant?
How to know if a human female is fertile (can give birth to child in future) without making her pregnant? Any signs, tests?
4
votes
1answer
233 views
Is there a relationship between efficiency of cellular metabolism and warm-blooded-ness?
My BIO 101 book states that when human cells convert glucose to ATP, the process is only approx 35% efficient, and much of the potential energy is lost as heat. However, that heat is useful to us in ...
2
votes
1answer
137 views
Why apes started to contemplate and become altruistic? [closed]
I was asking this first on philosophy forums, but it is suggested, that answer could be found from evolutionary view of point, so here we go:
Again my question raised when thinking of myths, their ...
5
votes
2answers
475 views
Fetal development, gastrulation and embryonic disc
I completely confused by the images circulating on the internet of human gastrulation.
First, lets see how it happens in deuterostomes. This image depicts the process:
(image is from Wikipedia)
...
