Multicellularity and Large Body Size of Eukaryotic Organisms Require High

question 35

Multiple Choice

Multicellularity and large body size of eukaryotic organisms require high metabolic rates and efficient ATP production by aerobic respiration. How did bacteria change Earth's atmosphere to enable aerobic respiration?

• A) Oxygenic photosynthesis by cyanobacteria significantly increased the amount of oxygen in the atmosphere.
• B) Splitting of water during anaerobic respiration by cyanobacteria dramatically increased the amount of oxygen in the atmosphere.
• C) Nitrogen fixation by cyanobacteria decreased the amount of nitrogen in the atmosphere, leading to the simultaneous increase of oxygen.
• D) Anaerobic respiration by cyanobacteria increased the amount of oxygen in the atmosphere by reducing the amount of iron oxides that were able to react instantly with oxygen.

Understand the calculation and application of materials quantity variance.

Comprehend the computation of the flexible budget and its relevance to indirect labor costs.

Grasp the concept and calculation of spending variances for total expenses.

Learn to calculate and interpret spending variances for plane operating costs.

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Definitions:

Competitor's Technology

The technological tools, innovations, or systems used by competing businesses within the same industry.

Produce

To create or manufacture goods or services for sale.

Units

Basic quantities or measurements, such as pieces, meters, kilograms, used to specify an amount of something.

Fixed Costs

Costs that do not change with the level of output or sales, such as rent, salaries, and insurance premiums, remaining constant regardless of the level of production.