Refer to the Graph Showing Data from a Set of Hydroponic

question 183

Multiple Choice

Refer to the graph showing data from a set of hydroponic experiments examining the dependence of germination on nickel levels.A number of plants are grown at different nickel concentrations for three generations.Some seeds from third generation plants are analyzed for nickel content, and some are germinated in solution lacking nickel.Many of the seeds germinate. Which conclusion is valid?

• A) Since more seeds germinate in the low nickel conditions, there must be too much nickel present.
• B) The lack of nickel in the germination solution compensates for too much nickel in the seeds.
• C) High levels of nickel are toxic to the plant.
• D) When plants are grown with sufficient nickel, their seeds contain enough nickel to allow germination.
• E) There must be small amounts of nickel present in the germination solution to allow the seeds to germinate.

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Definitions:

Money Supply

The aggregate financial amounts present in an economy at an identified time.

Interest Rate

The cost of borrowing money expressed as a percentage of the amount borrowed or the return on investment.

Investment

The allocation of resources, often financial, into assets or projects expected to yield future returns or benefits.

Money Supply

The entirety of assets available in monetary form within an economy's borders at a particular moment, consisting of cash, coinage, and records of balances in savings and checking accounts.