Two Graduate Students Are Trying to Identify New Species of Bacteria

question 165

Multiple Choice

Two graduate students are trying to identify new species of bacteria based on the criteria of Ernst Mayr. They are having a lot of trouble with this method, and then suddenly realize that they can't use Mayr's definition of a species for identifying bacteria species. Why not?

• A)DNA can be passed between bacteria of different species by means of horizontal gene transfer.
• B)DNA is never passed between bacteria of different species.
• C)Bacteria do not reproduce sexually and/or do not undergo meiosis.
• D)Bacteria form pili and, as a result, reproduce sexually.

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Definitions:

Demand for Coffee Makers

The desire and ability of consumers to purchase coffee-making machines, influenced by factors such as price, consumer income, and preferences.

Equilibrium Price

The price at which the quantity of a good demanded by consumers equals the quantity supplied by producers, resulting in market balance.

Demand Shift

A change in the quantity of a product or service that consumers are willing and able to buy at all price levels, caused by factors other than the price of the product itself.

Operating Costs

are expenses associated with the day-to-day functioning of a business, such as rent, utilities, and payroll.