<em>Answer:</em>
<em>Yep it is a primary sector</em>
What? Can you explain what you're saying better?
Water can diffuse without being digested
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.
Well have you had a basis to you're own answer? or would you like someone else to.