What change to the atomic model solve the problem seen in ruthfords model

Johannesburg kepler, an apprentice of brahe, believed in the heliocentric universe but rejected past astronomers belief in

When the cell concentrates potassium within, against the natural tendency of matter, it is performing a.passive diffusion b.facilitated diffusion c.active transport d.pinocytosis

Consider the venn diagram of plant reproduction. where in this image, areas a - d, would you insert the picture of the orange lily?