what are the factors that determine when a substance is toxic and unfit for human consumption
All corn plants are corn, but the various "varieties" and hybrids have widely different characteristics, both of the plants and of the corn produced. The largest cultivars for human consumption are hybrids (sweet corn) rather than the field corn which is native to North America.
It is found underground.
There is no scientific proof that plants grow better with any form of human interaction. Plants existed on earth for billions of years before humans evolved. The only way that certain plants benefit from human interaction are cultivated plants, where they are reliant on humans for water, fertilizer and basic care
Most decomposers, including worms and insects, will eat rotting human flesh. But there are no decomposers who specialize in dead human consumption.
Food items for human and animal consumption Wood Lumber Paper Chemicals
All plants do, some for human consumption and others for animals, insects or birds etc.
Plants feeding on it die, and that can intoxicate/starve animals. These animals are the poisonous and not fit for human consumption.
it all depends on the amount that a person consumes, everything is done in moderation
Pathogens can thrive in compost, " poisoning it for food for plants for human consumption, causing the spread of disease.
It's not good for human consumption.
In reality human meat is fit for human consumption. Pretty much any animal (unless poisonous) Is fit for human consumption, so yes, bull shark is fit too.
Cannabalism
what are the factors that determine when a substance is toxic and unfit for human consumption
When it's denatured rubbing alcohol not intended for human consumption, or when an of-age person is in the vehicle with them.
Human Consumption = Waste
What humans can eat