Ecologists Often Build Models to Depict the Relationships Between Organisms

question 105

Multiple Choice

Ecologists often build models to depict the relationships between organisms. In such models, an arrow is used to link two organisms in a relationship. The arrowhead is next to the organism that is affected. If the effect is positive, the arrow is labeled with (+) , and if negative, then the label is (-) . Capuchin monkeys have been known to use rocks to smash open the fruits of Brazil nut trees. On the rare occasions this has been observed, the monkeys consume all of the Brazil nuts. Thus, which of the following correctly depicts the relationship between capuchin monkeys and Brazil nut trees?

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Definitions:

Discounted Basis

A method of purchasing or selling a financial instrument (e.g., a bond) for a price that is below its nominal or face value, reflecting the present value of its future cash flows.

Cash Basis

An accounting method where revenues and expenses are recorded only when cash is received or paid, respectively.

Discounted Payback Period

The time required to recover an investment's costs, taking the time value of money into account by discounting future cash flows.

Operating Cash Flow

Cash generated from a company's normal business operations, indicating whether a company is able to generate sufficient positive cash flow to maintain and grow its operations.