The is a source of stem cells that has the characteristics of self-renewal and limited differentiation.

Bone marrow

Explanation:

Bone marrow is a source of adult stem cells (cells derived from adult tissue). They have the ability to self-renew but their differentiation potential is limited (they can only differentiate into cell types of the organ of their origin). So, we call them multipotent or unipotent. On the other side, embryonic stem cells can develop in any other type of differentiated cell type in the body (pluripotent). So, embryonic stem cells are more flexibile for use.

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands

colors do exist. the color of the sky is actually violet; humans percieve the color of the sky as blue.