1. It is currently possible to save some premature babies born as early as week (a) 8, (b) 16, (c) 22, (d) 38, (e) 2. 2. Somites are evidence of (a) a structure from ectoderm, (b) a structure from...

1. It is currently possible to save some premature babies born as early as week (a) 8, (b) 16, (c) 22, (d) 38, (e) 2.

2. Somites are evidence of (a) a structure from ectoderm, (b) a structure from endoderm, (c) a structure from lateral plate mesoderm, (d) segmentation in the human body.

3. Which of the following embryonic structures are segmented? (More than one is correct.) (a) intermediate mesoderm, (b) lateral plate, (c) endoderm, (d) myotomes.