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Ainat [17]
3 years ago
12

At the end of microbiology lab, you decide to practice your Gram-staining skills. The teaching assistant has no fresh cultures b

ut says you may use a plate she prepared several weeks ago. You find the correct plate in the refrigerator (labeled B.s. for Bacillus subtilis) and note that the colonies appear raised, dull, and wrinkled. This is just as you recall, so you get to work. After staining, you examine your slide under oil immersion and see that the cells are stained pink. What most likely accounts for this coloring?
Biology
1 answer:
dangina [55]3 years ago
4 0

Answer:

Loss of cell wall integrity or

Explanation:

Grams staining i a staining method used to classify bacteria into two main classes. Gram positive and Gram negative.

They are differentiated according to the ability of their cell wall to retain the primary stain color of the crystal violet stain or the counter stain pink.

Bacillus subtilis is a Gram positive bacteria hence it is supposed to stain purple.

Therefore, when it stained pink is an error. it shows loss of the cell wall integrity due to old age, overdecolorization or over fixing with heat.

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Describe the advantages and disadvantages of a command economy
Marta_Voda [28]
Long one hope this helps!

A command economy is one in which a centralized government controls the means of production. The government determines what is produced, how it is produced and how it is distributed. Private enterprise does not exist in a command economy. The government employs all workers and unilaterally determines their wages and job duties. There are advantages and disadvantages of command economy structures. Command economy advantages include low levels of inequality and unemployment and the common good replacing profit as the primary incentive of production. Command economy disadvantages include lack of competition and lack of efficiency.
A command economy is one in which a centralized government controls the means of production. The government determines what is produced, how it is produced and how it is distributed. Private enterprise does not exist in a command economy. The government employs all workers and unilaterally determines their wages and job duties. There are advantages and disadvantages of command economy structures. Command economy advantages include low levels of inequality and unemployment and the common good replacing profit as the primary incentive of production. Command economy disadvantages include lack of competition and lack of efficiency.
Unlike the invisible hand of the free market, which cannot be manipulated by a single company or individual, a command economy government can set wages and job openings to create an unemployment rate and wage distribution that it sees fit.
Whereas the motivation for profit drives most business decisions in a free market economy, it is a non-factor in a command economy. A command economy government, therefore, can tailor products and services to benefit the common good without regard to profits and losses. For example, most true command economy governments, such as Cuba, offer free, universal health care coverage to their citizens.
Command economies sit at a disadvantage as their inherent lack of competition hinders innovation and keeps prices from resting at an optimal level for consumers. Although those who favor government control criticize private firms that esteem profit above all else, it is undeniable that profit is a great motivator and drives innovation. For this reason, most advancements in medicine and technology have come from countries with free market economies, such as the United States and Japan.

Efficiency is also compromised when the government acts as a monolith, controlling every aspect of a country's economy. The nature of competition forces private companies in a free market economy to minimize red tape and keep operating and administrative costs to a minimum. If they get too bogged down with these expenses, they achieve lower profits or have to raise prices to meet expenses; ultimately, they are driven out of the market by competitors capable of operating more efficiently. Production in command economies is notoriously inefficient as the government feels no pressure from competitors or price-conscious consumers to cut costs or streamline operations.



7 0
3 years ago
A population of pine trees with long needles is separated from a population of pine trees with short needles by a large valley.
mixas84 [53]
The correct answer is:  [D]:
_____________________________________________________________
  " <span>The two populations will evolve separately and become their own species. "
_____________________________________________________________</span>
7 0
3 years ago
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The stigma produces a sugary substance.<br> true <br> false <br><br> help please thanks : )
Brilliant_brown [7]
The answer is A)true
4 0
3 years ago
Two different recording stations have found that they had the same value for T after an earthquake. If this is all the informati
igor_vitrenko [27]
They can conclude that the epicenter is the same distance from both recording stations.
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Which objects allow humans to access groundwater? Check all that apply.
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<h2>Answer:</h2>

<u>The objects that allow humans to access ground water are:</u>

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Access to ground water can be gained if we dig a well or use any source that can provide us an access below the water table. A water table is the level below which the ground is saturated with water. So above the saturation level we cannot gain access to water therefore we must go below it. A spring springs from ground below water table and the same thing occurs for well or an aquifer if it is below the water table..

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3 years ago
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