The embryonic phase differs from the pre-embryonic phase because ...

[lb_gilbert]

The embryonic phase differs from the pre-embryonic phase because
 
 A. the embryonic phase occurs during the first 2 weeks of pregnancy, while the pre-embryonic phase describes the period from 2 to 8 weeks of pregnancy.
  B. the embryonic phase is initiated by zygote formation, whereas the pre-embryonic phase is initiated by blastocyst formation.
  C. the embryonic phase begins at week 9 of pregnancy, while the pre-embryonic phase begins at week 2.
  D. organ formation and development begin during the embryonic phase, whereas blastocyst formation occurs in the pre-embryonic phase.

Question 2

When the body achieves physical maturity,
 
 A. growth ceases and cells immediately begin to die.
  B. growth continues but at a much slower rate.
  C. growth accelerates due to rapid cell turnover.
  D. growth ceases and the body enters a maintenance phase.

[kthug]

Answer to Question 1

D

Answer to Question 2

D

[lb_gilbert]

Excellent

[peter]

Gracias!