Examine the embryo in the following figure.The hands and feet of this embryo appear paddle-like,with no distinct toes or fingers.What process is needed to define each of the toes and fingers?
A)programmed cell death
B)neurulation
C)gastrulation
D)induction

Question

Examine the embryo in the following figure.The hands and feet of this embryo appear paddle-like,with no distinct toes or fingers.What process is needed to define each of the toes and fingers? 
A)programmed cell death 
B)neurulation 
C)gastrulation 
D)induction

Quizplus · Accepted Answer

The process needed to define each of the toes and fingers is programmed cell death, which is also known as apoptosis. During embryonic development, the cells between the hand and foot plate die off, creating spaces that will eventually form the distinct digits of the hands and feet. Without this process, the hands and feet would remain paddle-like with no distinct digits.

Examine the Embryo in the Following Figure