But fortunately for most of us, the immune system is constantly on duty to battle germs that could make us ill. The following discussion questions and activities will help your students learn about how the immune system protects them from germs and illness.
Elephants however, go through six sets of 9lb teeth during their lifetimes, with new teeth growing in to replace old ones that have worn out. An elephants starts with two front teeth that fall out after about a year and are replaced by a set of tusks.
How many teeth does a lion have? Lions have 30 adult teeth that are composed of 12 incisors, four canines, 10 premolars and four molars. The permanent teeth of a lion begin to break through the gums at 3 months of age and continue to develop until age 13 to 15 months.