A plant secretes ____ when it needs to respond defensively to a pathogen

a. salicylic acid
b. systemin
c. brassinosteroids
d. mineralocorticoids
e. nitric oxide


ANSWER: a

Biology & Microbiology

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The toxin of Vibrio cholerae causes severe diarrhea because it ____

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Which enzyme is used to bind DNA fragments together?

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A cuboidal shaped cell with six sides is 1 mm × 1 mm × 1 mm. What is the volume and the surface area of the cell?

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