Here is a phylogenetic tree of 5 species of pines. At the tips of the tree are data for a character known as number of stomatal rows. This character refers to the number of rows of stomata on the underside of a needle. All species have either 1 or 2 rows. Using the Fitch algorithm, what is the minimum number of changes that have occurred on this phylogeny between 1 and 2 rows of stomata

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assault rifle is a rapid-fire, magazine-fed rifle designed for military use. it is a shoulder-fired weapon that allows the shooter to select between semi-automatic (requiring you pull the trigger for each shot), fully automatic (hold the trigger and the gun continuously fires) or three-shot-burst modes.

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a

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