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3 years ago

What should I do for my biology experiment?

Business

1 answer:

nadya68 [22]3 years ago

3 0

CULTIVATE THE BACTERIA THAT GROW ON YOUR HAND

Ingredients: small airtight container, gelatin dessert

If you buy gelatin from a package, follow the instructions to make it. If you do not find gelatin to make, it should be even easier and just touch the gelatin from the glass jar and wait to see what happens.

Heat water on the stove and add the package contents to it, stirring the mixture vigorously until the gelatin grains dissolve. While the solution is still hot, pour into container where you want to cultivate your bacteria, and put the lid on in order to avoid contamination. Store the container in the fridge overnight so the gelatin can solidify. Remove from fridge once solid, touch the gelatin, put the lid on again and leave the container at room temp or near the radiator for a few days.

After some days you will see some white spots on the gelatin. These are your hands’ skin bacteria. Even if you try to wash your hands and repeat the experiment again, we will always have bacteria on our hands.

Explanation

Microorganisms are everywhere but we do not normally see them since they are so tiny and dispersed. In this case, they use the gelatin as food, and since there are so many nutrients in it they can divide (reproduce) many times and accumulate in the container until we are actually able to see them

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3 years ago

Why does a country need to have a comparative advantage in a particular product in order to engage in trade with another country

harkovskaia [24]

Answer:

Countries have a comparative advantage in production when they can produce a good or service at a lower opportunity cost than other producers.

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2 years ago

Metropolis National Bank is holding 2% of its deposits as excess reserves. Assume that no banks in the economy want to maintain

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Answer:

Increase in money supply = $200,000

Explanation:

Note: The given question is incomplete, missing part is as follow:

Metropolis National Bank

Balance sheet

Assets Liabilities

Reserves $60,000 Deposits $500,000

<u> Loans $440,000 </u>

Computation:

Excess reserve hold = 2% × Deposits

Excess reserve hold = 2% × $500,000

Excess reserve hold = $10,000

Required reserve = Reserves - Excess reserve hold

Required reserve = $60,000 - $10,000

Required reserve = $50,000

So,

Required reserve ratio = [$50,000 / $500,000]100 = 10%

Multiplier(K) = 1 / Required reserve ratio

Multiplier(K) = 1 / 10%

Multiplier(K) = 10

Total Money = Person deposit + Excess reserve hold

Total Money = $10,000 + $10,000

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3 years ago

Classify each characteristic as relating to a fixed exchange rate regime or a flexible, or floating, exchange rate regime.a. sig

marshall27 [118]

Answer:

(A) Fixed exchange rate regime

(B) Fixed exchange rate

(D) Flexible exchange rate

Explanation:

(A) A fixed exchange rate regime signals a commitment not to engage in inflationary policies. NOTE: Inflationary policies are a type of monetary policies (the type used to pump money into the economy). See answer (D).

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(C) Flexible exchange rate distorts incentives for importing and exporting goods and services. What are these incentives? On the government side, it is either the revenue that government makes from import tariffs and duties OR the subsidy that government pays on exported goods. On the importer/exporter side, it is the custom duties paid by importers on imported goods AND the subsidies enjoyed by exporters on exported products. A flexible exchange rate distorts or fluctuates these incentives.

(D) Flexible exchange rate enables policy makers to engage in monetary policy. Now, monetary policy is a tool used by ministers of finance or policy makers in every country; to regulate (increase or reduce or bring back to normal) spending and investment. If the exchange rate between or among countries were fixed, monetary policies would have limited application or usefulness when implemented. A flexible exchange rate encourages and enables engagement in or use of monetary policies.

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3 years ago

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The best answer is C.

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3 years ago