The cell membrane plays an essential role in the life of a cell how does the cell membrane maintain the health of cells?

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.

In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?

What is the farthest destination to date for a human spaceflight mission?