After Performing a Gram Stain on a Mixed Culture of Gram-Positive

question 48

Multiple Choice

After performing a Gram stain on a mixed culture of Gram-positive and Gram-negative cells, you realize that you omitted the iodine step. What would you expect to see if you observed the slide under the microscope?

• A) pink Gram-positive and purple Gram-negative cells
• B) purple Gram-positive and pink Gram-negative cells
• C) pink Gram-positive and pink Gram-negative cells
• D) colorless Gram-positive and pink Gram-negative cells
• E) colorless Gram-positive and colorless Gram-negative cells

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Definitions:

Ecological Issues

Concerns related to the impact of human activities on the environment, including pollution, loss of biodiversity, and climate change.

External Costs

Costs not borne by the producer or consumer of a good or service, but rather by third parties or the environment, often not included in the price of the good or service.

Hidden Environmental Cost

The indirect environmental impact and expenses not immediately apparent or accounted for in the pricing of goods and services.

Oil-Spill Clean Up

Oil-spill clean up involves the methods and technologies used to remove or mitigate the effects of oil spills in the environment, focusing on preserving marine and coastal ecosystems.