Dna replication occurs in preperation for
a) mitosis only
b) meiosis only
c) both mitosis and meiosis
d) neither mitosis nor meiosis

What the theory that the sun goes around earth was replaced with the theory that earth goes around the sun this was an exaple of a

What did not occur in the proterozoic eon a)the oxygen levels increase greatly in the atmosphere, b)the emergence of the eukarya , c)muti cella’s eukaryotic organisms began to diversify, d)anaerobic bacteria kept thriving with more oxygen

What pattern of migration do whales follow?