A tobacco farmer is walking through her fields. On a leaf of one of her tobacco plants, she notices several small brown spots surrounded by what appears to be necrotic or dying tissue. What likely caused these spots and necrotic patches?

A. The plant is demonstrating a
hypersensitive response.
B. The plant was recently eaten by
caterpillars.
C. The plant is demonstrating a SAR
response.
D. The plant is producing terpenes.


A

Biology & Microbiology

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