1) which of the following is the earliest era of earth's geological time scale a) cenosoic b) mesozoic c) precambian d) paleozoic 2) the idea known as panspermia proposed that life originated in space and came to life inside a a) spaceship b) meteorite c) satellite d) none of the above3) which of the following birds remained ancient looking in the miocene epocha) crowsb) owlsc) grousesd) none of the above