Which of the following is present in all angi | vedclass

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(B) Double fertilization is a unique and defining characteristic of angiosperms (flowering plants). It involves the fusion of one male gamete with the

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Double fertilization

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(B) Double fertilization is a unique and defining characteristic of angiosperms (flowering plants). It involves the fusion of one male gamete with the egg cell to form a zygote (syngamy) and the fusion of another male gamete with the two polar nuclei to form the primary endosperm nucleus (triple fusion). This process is universal in all angiosperms. Vessels are absent in some primitive angiosperms,secondary growth is absent in monocots,and while most angiosperms are autotrophic,some are parasitic (e.g.,Cuscuta),making double fertilization the only exceptionless feature among the choices.

Which of the following is present in all angiosperms without exception?

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