Partulina snails were once found throughout hawaii. there are no longer any partulina snails in existence. what factor may have led to the snails extinction?
a) increased building on the islands
b) an increase in its food source
c) developing thicker shells
d) hurricane season

Which statement best explains why cells were observed in more detail using a compound microscope than a simple microscope? a compound microscope has greater magnification ability than a simple microscope. the compound microscope was invented before the simple microscope. a compound microscope is much easier to manufacture than a simple microscope. compound microscopes were more common than simple microscopes.