The fluid found in the innermost part of mitochondria is called the mitochondrial matrix. The mitochondrial matrix is a viscous fluid that contains the mitochondria's DNA an â¦ d ribosomes.
It's often easiest to begin weaning when your baby starts the process â which might be sooner or later than you expect. Changes in breast-feeding patterns leading to weaning often begin naturally at age 6 months, when solid foods are typically introduced.
The average age of weaning was between 2 1/2 and 3 years of age, and was highest for the youngest child. The wide range of weaning was among one of the more interesting 7. findings, particularly the high percentage of women whose babies wean after 37 months (see. Table 1).