Answer: Refraining from consuming fatty foods
Explanation:
The <u>type 2</u> slowly changing dimension approach creates a new additional dimension record using a new value for the surrogate key every time a value in a dimension record changes. The correct answer is B.
<h3>Understanding the Slowly Changing Dimension</h3>
SCD, or slowly changing dimension, can be defined as a dimension in a data warehouse that stores and maintains the current data and the historical data over time. A slowly changing dimension in a star schema contains two different attributes values: do not change and change occasionally. Here is the difference:
- Attributes whose values do not change (or change very infrequently), including such store size and client gender.
- Attributes whose values vary intermittently and irregularly throughout time, such as customer zip code and staff salary.
The three most common approaches for coping with slowly changing dimensions are as follows:
Whenever a value in a dimension record changes, type 2 of a slowly changing dimension produces a new extra dimension record with a new value for the surrogate key. This type is also utilized when history needs to be kept, and it may be paired with the usage of timestamps and row indications.
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Answer:
Forensic investigations come to sex determination for personal identification . A comparative reliable sex determination analysis approach should be DNA-based rather than to use other conventional methods of sex determination analysis. The real-time polymerase chain reaction (PCR) technology has however become legally acceptable and because it is accurate and its result are reproducible. But still there are knotty situations like what chimerism present in that here an individual possess both male and female specific factors together in their body. Some sex determination analysis most times give a wrong lead and result.
If the criminal is chimeral having two blood groups.
Explanation:
Answer: a) Basophils
Explanation:
MHC Receptors are the Major Histocompatibility Complex (MHC) are a set of proteins that are essential for the recognition of what molecules belong to the organism, and which ones are foreign. There are 3 classes of MHC receptors. It is an essential component of the acquired immune system.
