17. Which nutrient is an essential structural component of the chlorophyll molecule and is directly involved in capturing light energy during photosynthesis? (A) Iron (B)s. Magnesium agiess (C) Nitrogen (D) Potassium

9. Which feature best distinguishes bryophytes from vascular plants with respect to life-cycle dominance? (A) Bryophytes possess a dominant sporophyte with vascular tissues (B) Bryophytes rely onon seeds for embryo nourishment (C) Bryophytes have a dominant gametophyte generation that supports a dependent sporophyte (D) Bryophytes exhibit equal dominance of both generations

17. Which nutrient is an essential structural component of the chlorophyll molecule and is directly involved in capturing light energy during photosynthesis?
(A) Iron
(B)s. Magnesium agiess
(C) Nitrogen
(D) Potassium

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