Most Natural Food Chains Are Only Four or Five Links

question 47

Multiple Choice

Most natural food chains are only four or five links long,rarely more.The number of trophic levels is limited because

• A)there are more predators than herbivores.
• B)the efficiency in the conversion of food eaten at each level is very low,about 10 percent.
• C)winter kills off most insects and stops the food chains.
• D)This is not correct; most food chains are much longer than four or five links.
• E)nutrients cannot be passed after four or five levels.

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Definitions:

Excess Returns

Excess returns refer to the amount by which an investment outperforms a benchmark or risk-free rate.

Inside Trades

Transactions in a company's securities made by its officers, directors, or holders of more than 10% of the stock, typically subjected to strict regulatory scrutiny.

Public

Pertaining to or involving the affairs of the community as a whole, often relating to government or public companies accessible to all people.

Semistrong-Form Efficient

A market hypothesis stating that share prices incorporate all publicly available information, making it impossible to consistently achieve higher returns.