Question 1
Plant cells assimilate nitrogen in the form of
◦ ammonia and N
2.
◦ N
2 and nitrite.
◦ nitrate and ammonia.
◦ urea and nitrate.
◦ uric acid.
Question 2
Secondary succession is likely to occur
◦ in a deciduous forest.
◦ on an eroded, bare hillside.
◦ in an abandoned field.
◦ in a deciduous forest and on an eroded, bare hillside.
◦ in a deciduous forest, on an eroded, bare hillside, or in an abandoned field.