Fever indicates that your body's immune system is doing its job because of two key reasons. One is due to the fever creating a "speed up" in white cell production and the other is due to the fever actually destroying harmful bacteria.
The outer ring is is the ever first ring but the inner ones tell if it’s old or not.
Answer:
Lactic acid fermentation is a type of anaerobic respiration
(or fermentation) that breaks down sugars to produce
energy in the form of ATP. It is called anaerobic because it
occurs in the absence of oxygen . Lactic acid is generated
as a byproduct of this reaction, which is what gives this
type of fermentation its name.
and also Lactic acid fermentation is the type of anaerobic
respiration carried out by yogurt bacteria (Lactobacillus
and others)