Stomata of desert plants remain closed during the day. Explain how and when they take up $CO_2$ to perform photosynthesis?

  • A
    They take up $CO_2$ at night when stomata open, storing it as an organic acid.
  • B
    They take up $CO_2$ during the day through specialized pores.
  • C
    They do not require $CO_2$ for photosynthesis.
  • D
    They absorb $CO_2$ directly from the soil through their roots.

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