Which of the following represents a synthesis reaction?
A. A + B ? AB
B. AB ? A + B
C. AB + XY ? AX + BY
D. AB + XY ? AX + BY
Answer: A
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Select the reaction that is most likely to be a tropism.
A. Flowers blooming when it is warm. B. Production of aerenchyma. C. Plants bending away from a heat source. D. Induction of seed dormancy.
How can the preservation of biological diversity be justified? Check all that apply.
_____ ethical grounds. _____ supernatural responsibility. _____ economic value. _____ ecological value. _____ exploitative value.
Ethanol is inferior compared to many energy sources because it has only:
What will be an ideal response?
Which of the following subatomic particles has appreciable mass, but no charge?
a. proton b. both proton and neutron c. Electron d. neutron