Question -
Different substances synthesised in the plant body get transported to their sites of requirement by ______.
Options:
A .  Diffusion
B .  Cytoplasmic streaming
C .  Active transport and mass flow
D .  All of the above
Answer: Option D : D Over small distances, substances move by diffusion and cytoplasmic streaming supplemented by active transport. Long distance transport occurs through the vascular system by mass flow.
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