Please Use the Following Information to Answer the Questions Below

question 37

Multiple Choice

Please use the following information to answer the questions below.
An elementary school science teacher decided to liven up the classroom with a saltwater aquarium.Knowing that saltwater aquaria can be quite a hassle,the teacher proceeded stepwise.First,the teacher conditioned the water.Next,the teacher decided to stock the tank with various marine invertebrates,including a sea star,a sponge,a sea urchin,a jellyfish,several hermit crabs,some sand dollars,and an ectoproct.Last,she added some vertebrates-a parrotfish and a clownfish.She arranged for daily feedings of copepods and feeder fish.
-One day,Tommy (a student in an undersupervised class of 40 fifth graders) got the urge to pet Nemo (the clownfish) ,who was swimming among the waving petals of a pretty underwater "flower" that had a big hole in the midst of the petals.Tommy giggled upon finding that these petals felt sticky.A few hours later,Tommy was in the nurse's office with nausea and cramps.Microscopic examination of his fingers would probably have revealed the presence of

• A)teeth marks.
• B)spines.
• C)spicules.
• D)nematocysts.
• E)a radula.

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Definitions:

Analytics

The systematic computational analysis of data or statistics, used for discovering and interpreting patterns, and for decision making.

OLAP

Online Analytical Processing, a category of software tools that provides analysis of data stored in a database.

Data Warehouses

Centralized repositories for storing large volumes of data from various sources, structured for query and analysis, supporting business intelligence activities.

Data Marts

Specialized sections of a data warehouse focused on a particular subject or department within an organization, making it easier for users to access relevant information.