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a graphical representation of the evolutionary relationship between taxonomic groups based on...
biological classification group (taxon) for animals that is divided into classes. The plural of...
the breakdown of food into smaller pieces by chewing and peristalsis.
the abiotic components relating to the physical nature of an area.
single-celled floating algae, which provide food for marine animals, such as fish and whales....
in plants: the first plant to become established in an area.in plants: the first plant to become...
the cylinder of parenchyma found from the centre of the stem to the inside of the vascular...
found in the cell wall of xylem cells where the secondary cell wall is absent but the primary...
an endocrine gland attached to the base of the hypothalamus, which secretes hormones that play a...
the kingdom of multicellular organisms that contain chlorophyll and make their own food by...