What is when one or more substances change to produce one or more different substances

Which are forms of nitrogen that are usable by humans

Which of the following words best matches this definition: the process in which the best adapted organisms survive and pass on their traits, while those that are not well adapted do not survive to pass on their traits. question 3 options: acquired selection natural selection artificial selection organic selection

What did you notice about the onion root tip cells that you saw at 40x power?