What is the relationship between prokaryotic cells and eukaryotic cells that lead to the development of the eukaryotic cells we see today?

if your own plato the answer is b. the fern transitioned from sporophyte generation to gametophyte generation.

the answer is c because it is most logical.

the circled areas are referred to   as sunspots.   the sunspots are cooler than the   surrounding area.

sunspots are temporary phenomena on the photosphere of the sun that appear visibly as dark spots compared to surrounding regions. they correspond to concentrations of magnetic field flux that inhibit convection and result in reduced surface temperature compared to the surrounding photosphere.

the wetland preservation movement began in the u.s. in earnest with the clean water act (cwa) of 1972. although not specifically written to protect wetlands, the cwa is comprised of a series of regulations designed to prevent pollutants from contaminating u.s. waters.