Bone __ Is Soft Tissue Inside Bones
This page is the CodyCross answer for the clue below from Fauna and Flora, Group 162, Puzzle 4 (Natural Selection).
Question is: Bone __ Is Soft Tissue Inside Bones
and the answer is: MARROW
Word Meaning:
MARROW — (uncountable) The substance inside bones which produces blood cells.
Definitions from Wiktionary.