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plant mating system

The mating system provides a description of the distribution of mating unions in a population. The main mating systems in plants are outcrossing (cross-fertilisation), autogamy (self-fertilisation) and apomixis (asexual reproduction without fertilization). Mixed mating systems, where plants use two or three mating systems, are not uncommon.

plankton_2

Aquatic organisms that drift or swim weakly. Phytoplankton are the plant forms of plankton (e.g. diatoms), and are the dominant plants in the sea. Zooplankton are the animal forms of plankton.

plankton_1

Typically microscopic aquatic organisms that drift or swim weakly. Phytoplankton are the plant forms of plankton (e.g. diatoms), and are the dominant plants in the sea. Zooplankton are the animal forms of plankton.

phylum

A major taxonomic grouping of animals linked by having a similar general body plan and thought to be a clade. In plants the similar category is called a division (Lawrence, 2005).