Answer:
big pp BIG PP small pp :(
The skeletal system supports and protects the body and the muscular system is for movement.
I believe it is class, because species are divided into different classes, but families, for example: there's the cat family, and there's the dog family. classes: the carnivores, herbivores, omnivores OR mammals, egg laying, or hermaphrodites
Between the Tropic of Cancer and Capricorn is the equator , which is one of the hottest places on Earth. I hope this helps you!