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competition between organisms of the same species.
(also called vascular tissue) the tissues that transport water and dissolved food in a...
double-membraned, pigmented, cytoplasmic organelles found in plant cells. The organelles have...
two species that interact symbiotically in a relationship that is beneficial to both species....
meristem that produces a layer of bark on the outer surface of a plant.
a v-shaped extension of the mammalian soft palate, which closes the opening to the nasal...