This printable crossword puzzle on the topic of Human Body Systems has 10 clues. Answers range from 4 to 23 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
The first stage of prenatal developmental is ______________________(also known as the implantation stage.
Fertilization occurs when the sperm enters the ____________________.
Identical twins are known as _____________________________ or one zygote.
This stage involves the formation of internal and external structures.
____________________ is the process in which three germ layers are formed.
Exposure to alcohol, drugs, viruses may cause ______________________.
This stage happens after the first 8 weeks until birth.
During this stage the fetus increases in __________________ and size.
Once the fetus reaches 48-53cm it is known as a _________ term baby.
Even though all of the organs are developed they continue to _______________ and develop during this stage.