Plants grow naturally towards the strongest source of light, this is called phototropism. They do this in order to maximise their exposure to the sun and increase the amount of photosysnthesis (and therefore growth). This is a survival mechansim.
researcher will either use random assignment or matching What do random assignment and matching have in common? They are both designed to create equivalent groups of participants. Random assignment is to random selection as _____ is to _____
Explain how associations between variables are used to answer research questions. Explain why random assignment and random selection are used in research. Explain why some information about a research study cannot be told to a research participant. An understanding of the basic elements of research is essential for good research practices.