The Following Questions Refer to the Description Below

question 58

Multiple Choice

The following questions refer to the description below.
The cycads, a mostly tropical phylum of gymnosperms, evolved about 300 million years ago and were dominant forms during the Age of the Dinosaurs. Though their sperm are flagellated, their ovules are pollinated by beetles. These beetles get nutrition (they eat pollen) and shelter from the microsporophylls. Upon visiting megasporophylls, the beetles transfer pollen to the exposed ovules. In cycads, pollen cones and seed cones are borne on different plants. Cycads synthesize neurotoxins, especially in the seeds, that are effective against most animals, including humans.
-Native peoples of Guam, such as the Chamorro people, are familiar with the toxicity of cycad tissues, and avoid eating them. They do, however, feast on flying foxes. The Chamorros suffer relatively high incidences of a neurodegenerative disease similar to Lou Gehrig's disease (ALS) . Which question follows most logically from these observations?

• A)Do the fruits of cycads also contain the neurotoxins?
• B)Do pollen-producing cones produce as much neurotoxin as seed-producing cones?
• C)Is the neurodegenerative disease of the Chamorros transmitted by the bite of the flying fox, similar to the way vampire bats can transmit rabies?
• D)Do flying foxes concentrate the cycad neurotoxins in their tissues?
• E)Can it be documented whether Lou Gehrig ever traveled to Guam and, if so, did he eat cycad seeds?

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Definitions:

Return on Investment

A measure of the profitability of an investment, calculated as the ratio of net profit to initial cost.

Investment Turnover

A ratio that measures how effectively a company uses its invested capital to generate sales revenue.

Return on Investment

A measure used to evaluate the efficiency or profitability of an investment, calculated as a percentage of the investment's profit to its cost.

Support Department Cost

Support department cost refers to the expenses associated with departments that provide essential services or support to production departments but do not directly engage in the production process.