- Definition & Examples. Homeostasis can be defined as a property of an organism or system that helps it maintain its parameters within a normal range of values. It is key to life, and failures in homeostasis can lead to diseases like hypertension and diabetes.
How to edit PDF files: 1  Open a file in Acrobat. 2  Click on the Edit PDF tool in the right pane. 3  Click the text or image you wish to edit. Acrobat shows you the tools youâll need.  Add or edit text on the page. Lines and paragraphs reflow automatically, or you can click and drag to resize elements.
Combine two or more files into a single PDF in the office or on the go. Drag and drop thumbnails to arrange pages in the right order from your computer or any web browser. This document provides instructions for Acrobat DC. If you're using Acrobat Reader DC, see What can I do with Adobe Reader.