Which cycle process is responsible for the sexual reproduction of a diploid sporophyte

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

The combining form leuk/o means red true or false

Land conservation is a worldwide priority. there are several methods to prevent the loss of land due to a variety of reasons. which method is not a way to conserve land? a) sea walls b) rainwater harvesting c) limits on clear cuts of forests d) cut and burn methods of clearing land