Update
Urea is filtered from the blood by the kidneys to form a liquid called urine.
Liquid wastes are stored in the bladder.
The muscular diaphragm separates the thoracic cavity from the abdominal cavity and
draws air into the lungs.
5 most important organs of the digestive system stomach, small intestine, large intestine,
pancreas, liver
What is the function of the molars? for crushing and grinding.
What do we call the process in which the ovum and sperm are united? fertilization
Where does a new individual that develops from a fertilized ovum get its traits? from both
parents
Where is the center of learning in the mammal's brain? in the cerebrum
Give 2 reasons some mammals migrate to avoid harsh weather, to find better food supply
What is hibernation during a hot summer called? estivation
vertebrates animals with a backbone
invertebrates animals with no backbone