1.the examples of crops having tap roots a)sugar beets and wheat b)sugar beets and akfalfa c)corn and barley. 2.to produce seeds the plant must a)stems b)leaves c)flowers a grass grown for its edible grain.a)root crops b)cereal c)forage crops 4.the wheat plant is )perennial b)biennial c)annual 5.applying improve the physical condition of the soil. a)water b)nutrients c)manure 6.the most important plant nutrients are phosphorus and potassium.a)nitrogen b)carbon c)hydrogen