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 above
3) which of the following birds remained ancient looking in the miocene epoch
a) crows
b) owls
c) grouses
d) none of the above
