The model that describes how data is written to a blockchain is the: append-only data structure.
<h3>What is an Append-only Data Structure?</h3>
Append-only is computer data storage property whereby new data can be added to a blockchain, like an additional block, in a time-ordered sequential order in such a way that the data added cannot be easily altered as al data are permanently stored across all nodes.
The append-only data structure makes data stored almost immutable. This is the model in which the blockchain technology is built on.
Therefore, the model that describes how data is written to a blockchain is the: append-only data structure.
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From the research that I have done, exports to the United States increases the country's balance of trade. Possibly creating a surplus of goods.
The correct answer would be an increase in exports to the United States
Here is a good example of what you are trying to understand.
<span>If a country exports a greater value than it imports, it has a </span>trade surplus<span>, </span>positive balance<span>, or a "favorable balance", and conversely, if a country imports a greater value than it exports, it has a </span>trade deficit<span>, </span>negative balance<span>, "unfavorable balance", or, informally, a "trade gap". A positive balance adds to </span>gross domestic product<span>, while a negative balance subtracts from GDP.</span>
Answer:
Sensory neurons send the impact of signals received from the senses and it delivers to the brain.
<u>Explanation:</u>
- Sensory neuron is a type of neuron that provides a relay type of information based on the signals received from the active parts of the body.
- Sensory neuron and motor neurons are connected to the central nervous system.
- If a person stubs on his toe, the impact of pain expressed to him is noted by the sensory neurons.
- These sensory neurons travel to the path of the brain after getting a proper signal of impulse from the senses.
- After receiving those signals, the brain sends necessary action to impart those signals.
- So the person feels the effect of pain and makes him to remove his leg from the toe.
It also has to work with other systems in order to make laws
For a marketing research study to have validity, it must actually measure what it sets out to measure.
Explanation:
When it comes to research, we need to make sure that the measures we are using are reliable and valid.
Reliability refers to consistency across time, items, and researchers. Validity refers to what degree the results of the research reflect what they are intended to reflect (if the research actually measures what it has set out to measure). There are three main types of validity:
- face validity - the extent to which the research actually measures what it's supposed to measure;
- content validity - the extent to which a measure represents all aspects of the researched phenomenon;
- criterion validity - whether the results of the research correlate with other variables they are expected to be correlated with and not correlated with variables they are not expected to be correlated with.
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