Daniel Arno Owns a Lawn and Landscape Business

question 16

Short Answer

Daniel Arno owns a lawn and landscape business.He has some very particular clients who want their lawns manicured on a specific day of the week.He has other clients who allow him to use his own judgement as to when their lawns need cutting.To maximize his efficiency, he wants to build a query that will show his weekly customers by name, day of the week, subdivision, and fee.Daniel creates a table called Customers.For those customers whose day of the week varies upon need, he leaves the day of the week field blank.Daniel wants to build a query that will show each customer name, day of the week (if specific), and subdivision.What criterion should he use to quickly find his customers whose day of the week varies?

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Definitions:

Myelin

A fatty substance that insulates the axon and allows it to send nerve impulses quickly.

Schwann cells

Specialized cells located in the peripheral nervous system, responsible for the formation of myelin sheaths around neurons, facilitating rapid signal transmission.

Axons

Long threadlike part of a nerve cell along which impulses are conducted from the cell body to other cells.

Myelinated axons

Nerve fibers covered in myelin, a protective sheath that speeds up the transmission of electrical signals in the nervous system.