What are the many conditions that are kept the same in an experiment

The control variable

Explanation: For any experiment to be successful they are three variables that needs to be carefully planned. Variables are different conditions that you choose to test under. There are dependent, independent and controlled variables. Controlled variables needs to be kept constant or the same and are usually off no interest. Dependent variables are the outcome of the experiment whereas independent variables are the input.

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.