Most of the world's food supplies comes from 14 species of crops. Which of these crops are the most important? A) corn, potatoes, and hay
B) wheat, rice, and sugarcane
C) alfalfa, rice, and wheat
D grasses, bananas, and beans

( ITS B!! )

many phylogenetic trees have a single lineage at the base representing a common ancestor. a lineage that evolved early from the root and remains unbranched is called basal taxon. when two lineages stem from the same branch point, they are called sister taxa.

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explanation:

the law of original horizontality explains:   why rocks appear in layers. correct answer: b the law suggests that all rock layers are originally laid down (deposited) horizontally and can later be deformed.   the principle is used by geologists to make assumptions about the relative ages of sedimentary rocks.