Answer: adult tissues
Explanation: Adult stem cells. These stem cells are found in small numbers in most adult tissues, such as bone marrow or fat. Compared with embryonic stem cells, adult stem cells have a more limited ability to give rise to various cells of the body.
This would be considered the synaptic cleft
Chloroplasts are the tiny structures in plants cells where photosynthesis happen. chloroplasts contain chlorophyll , a green pigment that absorb light energy for photosnthesis
It would be best to ask a professional on the subject.
8-10 years but one has lived to 20 years.
