Answer:
The physical stimulus is the only part of the test that is measureable, and therefore, knowable. The stimulus is our anchor for our estimate of the listener's perception.
The deficiency of vitamin B12 is a very rare case that would give rise to many conditions such as muscle cramps, difficulty walking, and numbness. This vitamin is crucial to the body and is also sometimes referred to as cobalamin.
A. Immune system
It helps our bodies fight everything that comes in our path.
Methanogens can be found in B.human intestines
Roots of plants and synthetic fertilizers can contain oxygen or come into contact with oxygen.
