2. In secondary endosymbiosis, a ______ is engulfed by a eukaryotic host. (A) Cyanobacterial cell. (B) Mitochondrion. (C) Cell containing a primary plastid. (D) Cell containing a secondary secondary plastid. (E) Cell containing a tertiary plastid.

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

2. In secondary endosymbiosis, a ______ is engulfed by a eukaryotic host.
(A) Cyanobacterial cell.
(B) Mitochondrion.
(C) Cell containing a primary plastid.
(D) Cell containing a secondary secondary plastid.
(E) Cell containing a tertiary plastid.

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