Cephalization is the differentiation of end part of the body into a head in which nerve tissue is concentrated. Sponges have a very loose nervous system and their cells work individually, not controlled by a nervous system. Since they have no defined head as a consequence of concentrated nervous system, the sponges could not have cephalization either.
The earth's revolution is the path around the sun. It is shaped live and oval and it last 1 year.
Usually basements are cold and attics are hot 1 reason why is most times attics are small and basements are big the bigger the more room for the hot air to spread out and ussually attics are all stuffed up with boxes and stuff
I think it might be the first one: hiv infections. (hope this helps!)
