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The average mass per single endospore is 
(7)fg.
| Region | Figure | Label | Mass (fg) |
|---|---|---|---|
| (A) | 8(a) | (1) | 153 (20) |
| (2) | 180 (20) | ||
| (3) | 192 (20) | ||
| (B) | 8(b) | (4) | 158 (20) |
| (C) | 8(c) | (5) | 154 (20) |
| (D) | 8(d) | (6) | 185 (20) |
| (7) | 189 (20) | ||
| (8) | 153 (20) | ||
