Queen bees emerge from special wax chambers(cen.acs.org) |
Queen bees emerge from special wax chambers(cen.acs.org) |
Temperature is another factor. IIRC amphibian embryos have to develop in a wide range of temperatures (an egg might be stuck to a leaf), so their cells have many more variants of proteins, where each variant is most-effective in a different temperature band.
In contrast, a mammal blastocyst or embryo already has the multicellular mother keeping temperature within a narrower band.
You can avoid fetal alcohol syndrome. You cannot realistically avoid fetal lead poisoning.
When are they not? Do you know of some scary experiments where human babies have been gestated outside the womb?
They are deeply weird in many ways.
Given that when a hive goes queenless the workers start laying eggs including in the royal chambers they're desperately building, and since the workers are unfertilized all of the eggs are haploids that hatch into drones, it has probably happened many times throughout apian history. No drag queens have been spotted.
I also recall seeing in a documentary that the temperature of crocodile eggs will determine if it's a male or female. Wikipedia seems to back that up:
https://en.wikipedia.org/wiki/Temperature-dependent_sex_dete...
> […]
> A 14-day rule prevents human embryos from being kept in artificial wombs longer than 14 days; this rule has been codified into law in twelve countries.
Well the criticism is, of course, that lead poisoning, in most cases was the government doing it (e.g. Flint, and lead pipes in Europe). As for "nothing to be done" ... well, no. But that still leaves the government responsible for the damage (which in cases they had a private party to convict was lifetime care + damages).
Of course, governments decided, immediately, they weren't responsible.
Lead poisoning either kills you quickly (large doses, or you're already an adult) or turns you into an idiot, permanently (young kids, including in the womb)
> microplastics ...
No version of microplastics damages kids' brains, so it doesn't compare, really.
*we don't conclusively know what their effects are yet, but that's not the same thing as saying they definitively aren't harmful.
Unless you’re very sure you’re not MTHFR mutated.
Unless you’re very sure you’re not MTHFR mutated.
> You may have heard that if you have an MTHFR variant, you should avoid folic acid and should take other types of folate, such as 5-MTHF. However, this is not true. People with an MTHFR gene variant can process all types of folate, including folic acid. Folic acid is the only type of folate shown to help prevent neural tube defects (NTDs).
or have a relative told they don’t have chronic Lyme disease,
and then we’ll talk about the obvious bulletproof nature of the CDC.
Yes - just not WELL.
No different than: some people can survive eating a pound or two of red meat daily - some emphatically cannot.