Proteins that give shape and structure to the cell and aid in the movement of molecules within the
cell

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

The pattern of this wave changes between its beginning and end. what is true about the amplitude and wavelength of the wave when the pattern changes?

The idea of spontaneous generation was disproved by in a experiment involving jars of meat