What is this organ?
the liver
Our heart is part of which system?
circulatory
How long does it take for a human baby to form?
9 months
Which reproductive system is this? Male or female?
male
What is the name of this system?
The digestive system
When we sweat, liquid leaves our skin through holes called P _ _ _ _ .
pores
What system is this picture from?
respiratory
the tube which connects our nose and mouth to our lungs is called the _________
trachea
The name of the female sex cell is the o_______
ovum
What is the name of this system?
the respiratory system
The name of the male sex cell is s_________.
sperm