The fetal period is best described as one of: a. development ...

[Yi-Chen]

The fetal period is best described as one of:
 
  a. development of basic organ systems.
  b. resistance of organs to damage from external agents.
  c. maturation of organ systems.
  d. development of placental oxygencarbon dioxide exchange.

Question 2

Some of the embryo's intestines remain within the umbilical cord during the embryonic period because the:
 
  a. umbilical cord is much larger at this time than it will be at the end of pregnancy.
  b. intestines begin their development within the umbilical cord.
  c. nutrient content of the blood is higher in this location.
  d. abdomen is too small to contain all the organs while they are developing.

[mcomstock09]

Answer to Question 1

C
During the fetal period, the body systems grow in size and mature in function to allow independent existence after birth.

Answer to Question 2

D
The abdominal contents grow more rapidly than the abdominal cavity, so part of their development takes place in the umbilical cord. By 10 weeks, the abdomen is large enough to contain them.

[Yi-Chen]

Gracias!

[cpetit11]

Thanks for the timely response, appreciate it