Which stage of the cell cycle generally require about the same amount of time in all human cells?

of those who start drinking before they're 15 will develop alcohol dependence

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands