In ferns the archegonia and antheridia develop on
a. the tip of the gametophyte.
b. the underside of the gametophyte.
c. the roots of the gametophyte.
d. the underside of the sporophyte.

Why should the united state be concerned about air pollution in china?

Asap what occurs after cytokinesis is completed at the end of meiosis 1?

Which statement best describes how the loudness of the sound affects the high-pressure region created by the sound wave? a. a louder sound has no effect on the pressure created. b. a louder sound means a high-pressure region that is higher. c. a louder sound means a high-pressure region that is not as high.