Fungi are also important directly as food for humans. Many mushrooms are edible and different species are cultivated for sale worldwide. While this is a very small proportion of the actual food that we eat, fungi are also widely used in the production of many foods and drinks. These include cheeses, beer and wine, bread, some cakes, and some soya bean products. While a great many wild fungi are edible, it can be difficult to correctly identify them. Some mushrooms are deadly if they are eaten.
How Long Does Marijuana Stay In Your Blood. How long the THC stays in the userâs blood depends on the frequency of marijuana use. Persons who smoked marijuana just once in their lives would have traces of the metabolites cleaned out within three to five days.
1 Blood testsâ effective ranges will vary based on the half-life of the drug but are generally sensitive for about one to three days.[1] Marijuana edibles will linger longer, for up to seven days.  Saliva tests range depending on the drug, but most can detect drugs used in the last 12 hours to three days.