This printable crossword puzzle on the topic of Human Body Systems has 13 clues. Answers range from 3 to 30 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Pregnancy last how many days?
What does sperm carry?
What is the smallest cell in a man's body?
What is the largest cell in a women's body?
When does two nucleu become one?
How many chromosomes come from mom?
How many chromosomes come from dad?
Name the life support of a baby in womb?
Prior to "it" being called a baby what are the stages?
Nurtients travel from mom's blood to the placenta then?_______to the baby
At 13 weeks the baby has the ability to?
What is developed at 25 weeks?
How many weeks do sex organs begin to work?