Business & money
Why do we need to prepare competent cells?

Why do we need to prepare competent cells? Competent cells are ready to use bacterial cells that possess more easily altered cell walls by which foreign DNA can be passed through easily. Most types of cells cannot take up DNA efficiently unless they have been exposed to special chemical or ...

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Why do we use biological control?

Why do we use biological control? Whether they be insects, weeds, or otherwise, pests are annoying. Biological control is the use of a pest's natural predators in controlling their populations in order to minimize their impact on economic and environmental practices. Why is biological ...

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Why do innovation teams fail?

Why do innovation teams fail? Why do innovation programs fail? The unrealised commitment and the lack of support for innovation are certainly one of the main reasons why innovations fail. As a result, many resources are lost through friction losses and innovation tasks are not worked out in ...

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Why do you need tuckpointing?

Why do you need tuckpointing? Tuckpointing helps to prevent water from entering into the chimney system. If the mortar joints are not repaired, water will seep down the chimney and sometimes between the chimney and the flue lining. Moisture can do a serious amount of unseen damage, such as cause ...

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Why does a 9 volt battery ignite steel wool?

Why does a 9 volt battery ignite steel wool? When you touch the 9 volt battery to it, the steel wool makes a completes the circuit of the battery. Steel wool is made mostly of iron which is extremely conductive. The surge of electrical current from the battery heats up the iron which causes it to ...

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Why do many scientists consider groundwater?

Why do many scientists consider groundwater? Why do many scientists consider groundwater pollution to be a greater problem than surface water? They perform water purification, biologists are trying to manipulate them and construct them because they naturally perform this ecosystem service for the ...

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Why do people survey property?

Why do people survey property? A survey provides peace of mind by showing the exact location of the house you are buying. A survey shows the exact dimensions of the property's boundary lines and how much land is included within those lines. What is the purpose of a property survey? A ...

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Why does crude oil need to be refined?

Why does crude oil need to be refined? Each also contains a certain amount of dissolved gas and highly corrosive products, such as sulfur or acids, which can sometimes be toxic. Crude oil is a highly variable mixture of heavy and light hydrocarbons that need to be separated in a refinery to turn ...

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Why do stomata open during the day?

Why do stomata open during the day? The stomata is a structure in a plant cell that allows water or gases to be let into the plant. Stomata are open during the day because this is when photosynthesis typically occurs. Opening and closing of stomata occur due to turgor changes in guard cells. ...

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Frank Slide - Outdoor Blog
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