About 93 million miles or 150 km or 8 light minutes (don't know what that means)
Circadian rhythms ....its just behavior that is repeated over 24 hours
<span>The mammalian sperm cell consists of a head, a midpiece and a tail. The head contains the nucleus with densely coiled chromatin fibres, surrounded anteriorly by an acrosome, which contains enzymes used for penetrating the female egg.</span>
Im sorry bro nobody’s gonna do all that ask your parents or something