| Answer | Crossword Clue |
|---|---|
| KERATIN | Basis of horny tissue. |
| OSSEIN | Chief organic basis of bone tissue. |
| Answer | Crossword Clue |
|---|---|
| KERATIN | Basis of horny tissue. |
| OSSEIN | Chief organic basis of bone tissue. |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.