The respiratory and digestive systems in the embryo develop from ...

[pane00]

The respiratory and digestive systems in the embryo develop from the
 
  A) ectoderm of the embryonic disk.
  B) mesoderm of the embryonic disk.
  C) endoderm of the embryonic disk.
  D) neural tube.

Question 2

Approximately how many teenage girls between the ages of 15 and 19 become pregnant during the year of 2010?
 
  A) about 100,000
  B) about 300,000
  C) about 700,000
  D) about 1,000,000

[kmb352]

Answer to Question 1

C

Answer to Question 2

C

[pane00]

Thanks for the timely response, appreciate it

[diana chang]

Excellent