Ascientist wants to determine when lions and house cats live shared a common ancestor should she use molecular clock that

"ticks" faster than a molecular clock used to determine when mammals and amphibians last shared an ancestor.

Because the earth is not round ,but it may seem round when viewed from ,our planet but true some points earth is not round was an oblate spheroid -a square that it squashed as globe however is not even a perfect oblate spheroid.in fact isaac newton's first proposed that earth was not perfectly round but it was an oblate spheroid instead.that mean a square that is squashed as its poles and swollen at the