Only 17% of public in U.S. don't believe in any afterlife
Even here many on this site saying we don't know. To me that's saying we don't know what a human is . A human is just another animal, cells , chemical reactions , a machine. What are the differences and similarities between a brain cell in my brain and that of a fly mouse dog monkey fish? Nobody is taught any of this
why do chemical reactions necessarily have a soul or afterlife or reincarnation. ? They don't
Im not Chinese grew up being taught catholic stuff . . I changed my beliefs after reading the book "the brain " .I see here only 11.5% of people in China believe in an afterlife. Most beliefs are taught.
Note an ai answer included that fish feel pain. How many trillions of fish animals and humans are tortured every day and have been for 500 million years ? But they constantly tell us life is so beautiful no its evil
I asked an ai this question
what are the similarities between an individual brain cell in a human brain and that of a chimpanzee fish mouse fly?
Ai answer:
In the broadest sense, individual brain cells (neurons) share fundamental similarities across humans, chimpanzees, fish, mice, and even flies, due to their conserved roles in transmitting electrical and chemical signals within the nervous system. Here's a breakdown of the similarities:
1. Basic structure
- Cell body (soma): Contains the nucleus and other organelles essential for the neuron's survival and function.
- Dendrites: Branching extensions that receive signals from other neurons.
- Axon: A longer extension that transmits signals away from the cell body to other neurons or target cells.
2. Functional principles
- Action potentials: Neurons generate and transmit electrical impulses called action potentials to communicate with each other.
- Synapses: Specialized junctions where neurons transmit signals to other cells via neurotransmitters.
- Neurotransmitters: Chemical messengers released by neurons to communicate with other neurons. Many neurotransmitter systems, including the receptors, transporters, and enzymes involved in synthesis and metabolism, are highly conserved across vertebrates, according to the National Institutes of Health (NIH).
3. Molecular components
- Tubulins: The main protein components of microtubules, which are crucial for neuronal structure and transport. Tubulins are highly conserved across species, allowing tubulins from yeast to assemble with tubulins from the human brain.
- Genes for brain development and function: Humans, mice, and flies share fundamental genetic mechanisms that regulate the formation and function of brain areas involved in attention and movement control.
- Neural precursor cells: The basic building blocks of the nervous system, including neurons and glial cells, are present in the nervous systems of flies and mammals.
4. Specific Examples of Shared Features
- Dopamine system: Humans and fruit flies both have nervous systems that respond to dopamine, a neurotransmitter that helps regulate movement and emotion.
- Pain receptors and pathways: Fish possess pain-sensing receptors in their brains and exhibit similar neuronal systems to mammals for detecting and processing pain, according to Understanding Animal Research.
- Retinal structure: The photosensitive tissue in the back of the eye, called the retina, is essentially identical in humans and fish, with the same overall cell types and layered structure.
- Cortical circuit motifs: Mouse and human brains share similar circuit motifs involving excitatory pyramidal cells and inhibitory interneurons.
5. Evolutionary conservation
The fundamental aspects of neuronal structure, function, and molecular composition are highly conserved across species, suggesting they originated early in evolution and were maintained due to their essential role in nervous system operation
Humans, mice and flies share the same fundamental genetic mechanisms that regulate the formation and function of certain brain areas, according to a new study.
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