<em><u>An output device is any piece of computer hardware equipment which converts information into human read able form. It can be text, graphics, tactile, audio, and video.</u></em>
<em><u> </u></em><em><u>➠</u></em><em><u>These devices are used by us on Daily basis as per as our requirements and living in 21st century where it's Computer era , These are just as important as our other helping Stuff .</u></em>
Chemical used is the main independent variable. Cell growth was the dependent variable or response variable. The cell type and dose are both being tested within the experiment leaving lab technician.