What makes a mineral element essential for plant growth?
A. As its concentration increases, the plant grows more.
B. It can only be found in organic fertilizers.
C. If it is missing, the plant cannot grow or reproduce normally.
D. It contributes to the solute potential of the plant.
E. It is part of typical chemical fertilizers.
Answer: C
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Dietary treatment of galactosemia ____
a. need not begin until one or two months after birth b. consists of very low protein intake c. can usually be discontinued by the age of twelve d. completely eliminates symptoms of the disease e. should be started within a few days after birth
What is the result when airborne sulfur and nitrogen oxides coat dust particles?
a. wet acid deposition b. dry acid deposition c. a chemical reaction that produces sulfuric and nitric acids d. wet acid deposition and increased soil pH when dust settles e. dry acid deposition and reduced soil pH when dust settles
What are the reactant(s) in the following chemical reaction? C6H12O6 + 6 H2O + 6 O2 ? 6 CO2 + 12 H2O
A) CO2 and H2O B) C6H12O6, H2O, and O2 C) O2 only D) C6H12O6, H2O, O2, CO2, and H2O
Humans who have lost one copy of an autosome are called
A. bisomic. B. monoploid. C. monosomic. D. haploid. E. trisomic.