What part of the flower contains the pollen

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

Explain how the parts of the peripheral nervous system work with the central nervous system to produce a response to the stimulus

Which of these is not an obstical to the future of space exploration? fundingresearch ideas technologytime