Too many plants are edible to provide a short answer. Lots of plants are also toxic. Bacteria can make some of the toxic ones less toxic (chocolate), as can some processing steps (poke salad for example) Yes, caffeine occurs naturally, as do other alkaloids.
NO!!! It does not occur naturally. However, its mineral ores are very common. e.g. Haematite, Magnetite.
Plant metabolism can be defined as the combination of two processes known as photosynthesis and respiration. These processes make it possible for plants to grow and reproduce.
A control group is the group in which one attempts to keep everything the same as would naturally occur. This is done to be able to compare groups that have results to a standard reference.
There are a number of metals which are called trace elements, that the body needs in very small amounts; these include copper and zinc.
If something were passed down from parents, that would be inheritance. A mutation is when something goes wrong and causes a change in the genetic structure. Mutations can be caused by radiation or chemicals or mutations can also occur "naturally" when some part of DNA replication or correction goes wrong.
At 25°C, pure caffeine is a solid.
Cacti are native plants of the Americas and do not occur naturally in the Gobi Desert.
Cacti are strictly new world plants and would not occur naturally in Kuwait.
In food / everywhere. Lots of E numbers occur naturally, in plants and other substances.
Cacti are strictly New World plants and so not occur naturally in the Sahara.
Basically other carnivorous plants such as sundews, as they all have the same adaptation because they occur naturally in Nitrogen deficient soils.
It DOES occur naturally. It is an ore. It is not man made.
everywhere. when there are trees in that area
Thallium, discovered in 1861, does occur naturally, but not in its pure form.
Rivers are not built, they occur naturally, so there is no year that the river Lee was built.Rivers are not built, they occur naturally, so there is no year that the river Lee was built.Rivers are not built, they occur naturally, so there is no year that the river Lee was built.Rivers are not built, they occur naturally, so there is no year that the river Lee was built.Rivers are not built, they occur naturally, so there is no year that the river Lee was built.Rivers are not built, they occur naturally, so there is no year that the river Lee was built.Rivers are not built, they occur naturally, so there is no year that the river Lee was built.Rivers are not built, they occur naturally, so there is no year that the river Lee was built.Rivers are not built, they occur naturally, so there is no year that the river Lee was built.Rivers are not built, they occur naturally, so there is no year that the river Lee was built.Rivers are not built, they occur naturally, so there is no year that the river Lee was built.
94 kinds of atoms occur naturally on earth
Chlorine gas does not occur naturally as it is too reactive. Chloride salts occur naturally. The most common is sodium chloride, NaCl. Chlorine, Cl2, is obtained by electrolysing molten NaCl.