41. When plant cells undergo mitosis, one of the most significant differences from animal cells is the method of cytokinesis. Plant cells primarily complete cytokinesis through which of the following structures? (A) Contractile ring (B) Cell plate (C) Cleavage furrow (D) Centrosome pulling

44. Regarding succession in community ecology, which of the following situations represents "primary succession"? (A) Shrubs regrowing after a forest fire. (B) An abandoned farmland gradually transforming into a secondary forest. (C) Lichens and mosses first colonizing bare rock after a volcanic island is formed. (D) Pioneer tree species growing in a canopy gap after a typhoon blows down a large tree.

41. When plant cells undergo mitosis, one of the most significant differences from animal cells is the method of cytokinesis. Plant cells primarily complete cytokinesis through which of the following structures?
(A) Contractile ring
(B) Cell plate
(C) Cleavage furrow
(D) Centrosome pulling

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