Which of the following activities can be directly linked to desertification? (1 point)
I. irrigation of cropland
II. harvest of biomass for energy
III. building of housing developments

II only
III only
I and II
I and III
II and III

In addition to seeds, which of the following characteristics are unique to the seed-producing plants? a) sporopollenin b) lignin present in cell walls c) pollen d) use of air currents as a dispersal agent e) megaphylls

50 points! which of the following is an inference? a burning candle is extinguished when it is covered with a jar. the candle burns longer than expected in a jar that has a plant in it. a plant lives longer than expected in a jar that has a burning candle. there is more oxygen in the jar because there is a plant in it.

What is gene expression control that occurs after the generation of rna