Plz ! have to submit within 5 minutes! scientists have discovered convection currents inside earth. explain how these convection currents move and what layer(s) they occur in.

Compare and contrast the relative importance of the sporophyte vs gametophyte generation between nonvascular plants (bryophytes), seedless vascular plants and seed plants, and explain the ecological significance of a larger sporophyte generation

Which would be the most useful source of evidence to support mcneill's contention?

If a checkpoint detects damaged dna, the checkpoint may