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.
1 When we compare horses with other animals, especially elephants, we come to know that the former have a much sharper and better memory than that of elephants. 2  Horses have larger teeth and their size is not equal in males and females. 3  A male horse has 40 teeth while a female has 36 teeth in total.y: Maria Saleem | 20, Mar 2013 | Mammals. The horse is considered a friendly and peaceful animal that has proved to be the wonderful companion of humans in all ages. They are found in multiple colors & types and all of them look simply outclass.