Tim Is Working on an Important Presentation for the Annual

question 8

Multiple Choice

Tim is working on an important presentation for the annual directors' dinner. He has a few pictures taken at last year's dinner that he would like to edit and then integrate into his acsampanying slide show, but he has no experience editing pictures. Tim asks you how to remove the background from one of the pictures he inserted on a slide. You tell Tim to ____.

• A) send the picture out to a professional to remove the background and then reinsert the picture; it is too difficult to do in PowerPoint
• B) select the picture, tap or click the Remove Background button (PICTURE TOOLS FORMAT tab | Adjust group), drag handles on background removal lines to position the part of the picture to be retained within the marquee, tap or click the Keep Changes button (BACKGROUND REMOVAL tab | Close group) to discard the unwanted picture background
• C) select the picture, click the Keep Foreground button (PICTURE TOOLS FORMAT tab | Adjust group), drag handles on foreground retention lines to position the part of the picture to be retained within the marquee, click the Keep All Changes button (FOREGROUND tab | Refine group) to keep the wanted picture foreground
• D) select the picture, tap or click the Adjust Background button (PICTURE TOOLS FORMAT tab | Adjust group), drag handles on background removal lines to position the part of the picture to be removed within the marquee, tap or click the Discard All Changes button (BACKGROUND EDITING tab | Close group) to discard the unwanted picture background

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Definitions:

Spatial Summation

The process by which multiple synaptic inputs from different locations on the same neuron combine to influence the firing rate or activity of the neuron.

Dendrites

The branched projections of a neuron that act to conduct the electrochemical stimulation received from other neural cells to the cell body.

Back Propagation

Reverse movement of an action potential into the soma and dendritic field of a neuron; postulated to play a role in plastic changes that underlie learning.

Action Potential

A temporary reversal of an electric polarization of the membrane of a nerve cell or muscle cell, allowing for the transmission of signals.