A Paramecium "Knows" When It Has Encountered a Noxious Substance

question 14

Multiple Choice

A Paramecium "knows" when it has encountered a noxious substance and backs off to veer away.As a one-celled organism,how does it "know" to do this?

• A) The macronucleus has DNA coding that determines this reaction.
• B) The micronucleus is dedicated to controlling just such responses.
• C) This cell is essentially a small neuron, or nerve cell.
• D) This is a rather simple stimulus that changes the electrical potential difference across the cell membrane and depolarization of the membrane results in cilia reversing their direction of beating.
• E) None of the choices are correct.

Identify defining features of ethnic groups and the concept of "ethnic entrepreneur."

Evaluate the arguments for and against multiculturalism in Canada.

Compare and contrast the experiences of different ethnic groups in Canada.

Examine theories explaining the economic, cultural, and social positions of ethnic groups.

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Definitions:

Unit Product Cost

The calculated cost of producing a single unit of product, including direct materials, labor, and overhead costs.

Average Cost

The cost calculated by dividing the total cost of goods available for sale by the total units available for sale.

Financial Advantage

A benefit or edge that contributes to a stronger financial position relative to competitors or within the marketplace.

Constraint

A limitation under which a company must operate, such as limited available machine time or raw materials, that restricts the company’s ability to satisfy demand.