______ is an example of bioremediation.           

______ are seedless vascular plants.     

Which of the following lack vascular tissue?     

Why are ferns considered incompletely adapted to the terrestrial environment, when compared with other plants?

Cocci are ______ prokaryotes.

The first life forms to appear on earth were ________________.

Gametophytes are ______; sporophytes are ______.       

Gymnosperms do not have flowers, they have cones instead.

The plant in the haploid phase is called the gametophyte, because it produces gametes

The magnitude of buoyant force is affected by the ___________.