Field Observation Suggests That Populations of a Particular Species of Herbivorous

question 35

Multiple Choice

Field observation suggests that populations of a particular species of herbivorous mammal undergo cyclic fluctuations in density at three- to five-year intervals. Which of the following represent (a) plausible explanation(s) of these cycles?

• A)Periodic crowding affects the endocrine system, resulting in increased aggressiveness.
• B)Increases in population density lead to increased rates of predation.
• C)Increases in rates of herbivory lead to changes in the nutritive value of plants used as food.
• D)Increases in population density lead to more proximal infestations of parasites to host animals.
• E)All of the above are plausible explanations of population cycling.

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Definitions:

Accrual

The accounting principle of recording revenues and expenses when they are incurred, regardless of when cash transactions occur.

Contra Asset

A balance sheet account used to reduce the value of related asset accounts to report their net value; examples include accumulated depreciation or allowance for doubtful accounts.

Prepayment

Payments made in advance for goods or services, recorded as an asset on the balance sheet until the corresponding goods or services are received.

Adjusting Entries

At the end of a financial period, entries are made in the books to correctly allocate profits and outlays to the period they belong to.