Facilitated diffusion if the particle is transported down a concentration gradient or active transport if the particle is transported against a concentration gradient. Depending on the diagram, the answer could also be uniport which refers to the transport of a particle in a single direction.
If a plant has no Casparian strips, it will not be able to
control the amount of water it absorbs and solutes. Casparian strips regulate
the amount of water that gets to the xylem. Without it, a plant won’t be able
to control the amount of water going to the xylem.
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Answer:
assist with flood control
