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.
Babies spend a long time with mom before they venture out on their own. In fact, weaning can start as late as 12 months of age in some cases and complete independence often takes up to 18 months. Giraffes don't have a new baby until the first one is weaned.