What is true of eudicots but not monocots?
A. eudicots have venation that is parallel to the leaf axis
B. eudicots have flower parts usually in multiples of four or five
C. eudicots have vascular bundles scattered in their stems
D. eudicots have stomatal pores but monocots do not
E. eudicots have true seed leaves but monocots do not
Answer: B
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Which histone modification directs the formation of the most common type of heterochromatin? (a) H3 lysine 4 methylation (b) H3 lysine 9 methylation (c) H3 lysine 14 methylation (d) H3 lysine 27 methylation