Answer to Question #119104 in Evolution for Jack

Question

What are the observable changes that takes place in the brain of a 5-week old (human) embryo and a boy who is two years old.

Answer 1

Fetal development is the process of conceiving a baby and developing the baby mother’s womb. The process starts when a male and a female meet and have sextual intercourse. The sperm and the ovum meet at the fallopian tube and form a zygote. It takes nine months for the embryo to be fully formed. At week five the embryo starts developing some characteristics some of which include;

1)     The brain starts to develop, spinal cord and the heart.

2)     Blood cells, kidney cells, and nerve cells all develop.

3)     The embryo grows rapidly, and the baby's external features begin to form like the fingers and toes.

4)     Baby's gastrointestinal tract starts to form.

This period is called the embryonic period.

After the nine months and the baby is born he or she grows very rapidly. One will start observing some characteristics in boys that are not there in girls.

When the child reaches two years more so the boys these characteristics becomes very clear.

1)     Boys will start playing and differentiating between the relationship between objects. For instance, the boy will be able to match shapes that are similar. He will match different types of cars and aeroplane toys.

2)     He’ll also begin to recognize the purpose of numbers in counting objects—especially the number two.

3)     The boys will start going to the toilet by themselves.

4)     They will start following simple instructions like. Sit down, eat or even to take off their clothes.