What Is Life? 2nd Edition by Jay Phelan

تمرين 4

Which came first, the chicken or the egg?
A) The chicken, because the amniotic egg did not evolve until the first chicken appeared.
B) The egg, because the amniotic egg evolved well before the first birds.
C) The chicken, because, during speciation, the adult stage always precedes the juvenile stage.
D) The egg, because the chicken is not a real species.
E) It is impossible to determine, because eggs leave no fossils.