Let X Be the Number of Reptiles, Y Be the Number

question 79

Multiple Choice

Let x be the number of reptiles, y be the number of mammals, and z be the number of plants on the island of Komodo, all measured in thousands (e.g., x = 50 means 50,000 reptiles) .The following differential equations give the rates of growth of reptiles, mammals, and plants on the island: $\begin{array}{l}\frac{d x}{d t}=-0.2 x-0.04 x y+0.0008 x z \\\frac{d y}{d t}=-0.1 y+0.01 x y \\\frac{d z}{d t}=2 z-0.002 z^{2}-0.1 x z\end{array}$ What would happen to the plants if the other two were not present?

• A)They would experience logistic growth.
• B)They would experience exponential decay.
• C)They would remain constant.

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Definitions:

Recording

The process of entering financial transactions into the accounting records of a business.

Voucher Register

A record of vouchers, which are documents evidencing expenditure or the transfer of funds.

Book Of Vouchers

A ledger or book that contains vouchers, which are documents or files acting as evidence for transactions.

Gross Method

A method of recording purchases of inventory at their gross price without any deduction for trade discounts at the time of purchase.