Hot answers tagged biology
15
Well, the fundamental flaw in the entire premise is an understanding of the word "chance" as well as what scientists have done in the field of abiogenesis... The entire "answers in genesis" argument is a strawman (amongst many other logical fallacies), so I really don't think it's worth addressing. However, abiogenesis itself is a NEW and exciting field of ...
6
Tackling the "what evidence is there that life could create itself by chance?" element:
We know that many important complex chemicals exist in space, such as polycyclic aromatic hydrocarbons (PANHs) and organic molecules.
We know that some complex chemicals can form "autocatalytic networks," which can sustain the creation of (local) order given the proper ...
5
Yes they can, as long as they are not eaten, or killed in other ways.
Here is an article at National Geographic:
Like the Brad Pitt movie character, the immortal jellyfish transforms from an adult back into a baby, but with an added bonus: Unlike Benjamin Button, the jellyfish can do it over and over again—though apparently only as an emergency measure.
...
3
It seems unlikely.
Soy contains isoflavones which are said to mimic oestrogen.
Many cattle are given growth promoting hormones - including oestrogen.
If the sources below are to be believed, the daily amount consumed in soya may be thousands of times greater than that consumed in beef.
Soy: 30000 ng
Beef: 4 ng or 20 ng.
The first two sources are not ...
3
One study suggests that for one species this is hypothetically possible.
Reversing the Life Cycle: Medusae Transforming into Polyps and Cell Transdifferentiation in Turritopsis nutricula (Cnidaria, Hydrozoa). Stefano Piraino, Ferdinando Boero, Brigitte Aeschbach and Volker Schmid
Biological Bulletin
Vol. 190, No. 3 (Jun., 1996), pp. 302-312
Organisms ...
3
Spontaneous sex change does not occur in humans.
External genitalia are often ambiguous, the degree depending mainly on the amount of testosterone produced by the testicular tissue between 9 and 13 weeks of gestation. However, there are multiple classifications of hermaphroditism including simultaneous and sequential. Simultaneous hermaphroditism is when an ...
1
Wartickler's answer sums up why a sudden over night sex change can't happen. I want to address a possible explanation to the event.
The only evince we have that the change has happened is that Than Sein's (the person in question) birth certificate states he was born a female. This can be easily attributed to him being an intersex1 person, as the article ...
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