reggie accidentally left his books on top of his car before he left for class. the books stayed on top of his car while he was driving north on oak avenue. then, when he made a sharp turn eastward onto harris lane, his books fell off the top of his car and onto the street.

Maria wanted to grow a fern in her backyard. acting on a suggestion from a friend, she collected brown dots from the underside of a fern's leaves and then potted them. after a few days, maria saw small fern leaves erupting from the pot. which statement explains this phenomenon? a. the fern transitioned from gametophyte generation to sporophyte generation. b. the fern grew as a result of mitosis. c. the fern transitioned from sporophyte generation to gametophyte generation. d. the fern grew to be genetically identical to its parent plant.

Iwill give brainiest to first person who gets it ! what are 3 basic types of interactions we see in an ecosystem?

Why are scientists concerned about the depletion of the ozone levels in the stratosphere?