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 _____
The following guidelines apply: 1  when an object is allocated, it should generally be immediately assigned to a shared_ptr or unique_ptr that is the 'owner': typically this shared_ptr/unique_ptr should act as the 'owner' of the object. plain pointers are thus never used to act as the 'owners' of objects.