An Environmental Sample from the Ocean Contains Phototrophic Bacteria That

question 8

Multiple Choice

An environmental sample from the ocean contains phototrophic bacteria that produce oxygen.How would you classify these bacteria?

• A) Information about the cell wall would be required to determine whether these bacteria are Gram positive or Gram negative.
• B) These bacteria must be cyanobacteria based on their production of oxygen.
• C) It is highly probable that these bacteria are Gram-negative bacteria based on their presence in a marine environment.
• D) These bacteria must be chlamydia found within unicellular organisms.

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Definitions:

Variable Costs

Costs that change in proportion to the level of activity or volume of production.

Break-even Point

The point of business operation at which revenues equal expenses, resulting in no net loss or gain.

Variable Costs

Expenses that change in direct proportion to the amount of production or the volume of sales.

Fixed Costs

Costs that do not change with the level of production or sales, such as rent, salaries, and insurance expenses.