Why would radiometrically dating a mineral in the clast of a sedimentary rock not yield the age of formation of the sedimentary rock?

______ 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