<Li> Conifers (Pinophyta) and flowering plants (Angiospermae) lack the flagellae and centrioles that are present in animal cells . </Li> <P> The cells of fungi are most similar to animal cells, with the following exceptions: </P> <Ul> <Li> A cell wall that contains chitin </Li> <Li> Less definition between cells; the hyphae of higher fungi have porous partitions called septa, which allow the passage of cytoplasm, organelles, and, sometimes, nuclei . Primitive fungi have few or no septa, so each organism is essentially a giant multinucleate supercell; these fungi are described as coenocytic . </Li> <Li> Only the most primitive fungi, chytrids, have flagella . </Li> </Ul> <Li> A cell wall that contains chitin </Li>

Which group includes the simplest of organisms that lack nuclei
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