I am aware of this. But the entanglement of photons in nerve cells can only go as far as one nerve cell, because between cells the signaling is based on chemica

I am aware of this. But the entanglement of photons in nerve cells can only go as far as one nerve cell, because between cells the signaling is based on chemicals that flow through some liquid. The signaling is not even electric. One nervecel releases some pockets with neurotransmitters and the other cell has receptors for those, causing an electric signal to start in that cell. This breaks any meanigful entanglement due to the very bad signal noise ratio. So, I was given an example of another quantum effect as an example. If there is some entanglement in nervecells, it might as well occur in plant cells, because they have a common ancestor. These kind of articles wash over the signal noise ratio. Your phone does pick-up WiFi signals from tens of kilometer away, yet you hardly ever establish a connection with them, because there are so many other stronger signals. Only in some very specific setup is this possible, like we are still able to communicate with the voyager probes, one of which is now more than a lightday away.