Example of selective breeding: Cows that produce lots of milk. Selective breeding to create more useful varieties of animals and plants is a form of biotechnology that human beings have used for thousands of years. Biotechnology includes any use of science or technology to alter the characteristics of a particular breed or animal.
You make an educated guess in what you already know about the experiment. Make sure you hypothesis is testable, It is not a question so dont make it sound like one <span />
