Grazing increases photosynthetic rates in certain plant species because
A) it allows more light to reach younger, more active leaves.
B) older leaves transport sugars more slowly to the roots.
C) it allows the roots to take up more nitrogen.
D) older, dying leaves are sugar sinks.
E) it reduces competition for atmospheric carbon dioxide.
Correct Answer:
Verified
Q29: An RNA virus attack on a plant
Q30: Grazing can increase photosynthetic production by
A) causing
Q31: Which of the following is not a
Q32: Secondary metabolites
A) are essential for basic biological
Q33: Some plants produce the amino acid canavanine,
Q35: Steroids produced by plants may
A) attract pollinators
Q36: Defensive, water-soluble secondary compounds formed by plants
Q37: Salicylic acid in plants does not
A) increase
Q38: Defensive secondary metabolites can affect insect
A) nervous
Q39: Grazed plants may exhibit increased productivity because
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