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Q: What event occurs during weeks 13-16 of fetal development?
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Where does differentiation occur?

In people, differentiation occurs during the fetal development in the uterus.


What is hydranencephaly?

Hydranencephaly is a rare congenital deformity (a deformity that occurs during fetal development) that is characterized by the absence of the cerebral hemispheres of the brain.


Intramembraneous growth occurs at what stage?

By week 8 in fetal development


Which disease occurs with undersecretion of thyroid hormone?

Undersecretion of TH during fetal development or infancy cause cretinism, a condition characterized by dwarfism and delayed mental and sexual development.


When does Organogenesis develop in children?

Organogenesis occurs within the first trimester of fetal development.


What stage of animal developmetn does development of the germ layers occur?

Development of the germinal cell layers occurs very early in fetal development.


Is the skeleton cartilaginous or bony during fetal development?

cartilaginous


Which two chambers are connected by the fossa ovalis during fetal development?

the right and left atrium of the fetal heart.


What is the difference between fetal and fatal?

Fetal and Fatal are both adjectives but are totally different! Fetal is descriptive of the fetus ( also written as Foetus) of an organism, which is the embryo of an animal; For example, "Fetal development in humans occurs in many stages". Fatal on the other hand is descriptive of a situation or a negative event; for example, " A fatal accident occurred down the road and several people were injured"


The greatest amount of fetal growth occurs during what month?

4 months


Where are the testes located before a baby is born?

In the fetus, the testes are in the abdomen. As development progresses they migrate downward through the groin and into the scrotum. This event takes place late in fetal development, during the eighth month of gestation.


How the sequence that occurs between fertilization and the stage called implantation?

During the fourth week implantation of fetal development takes place. At this stage the fertilized egg is now called a blastocyst.