The Introduction of a Large Predatory Fish Species into a Lake

question 15

Multiple Choice

The introduction of a large predatory fish species into a lake will lead to declines in populations of smaller fish,which in turn cause an increase in plankton.This series of events is one example of

• A) succession.
• B) species turnover.
• C) a trophic cascade.
• D) a keystone exchange.
• E) an ecological transition.

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Definitions:

Disbursement Float

Float created before cheques written by a firm have cleared and been deducted from the firm’s account. Disbursement float causes the firm’s own cheque-book balance to be smaller than the balance on the bank’s records.

Net Float

The difference between a firm’s disbursement float and collections float.

Marketable Securities

Financial instruments and assets that can easily be sold or converted into cash, typically within a year.

Credit Rating

Evaluating the likelihood that a borrower can repay their debt, either in general or in relation to a specific financial commitment.