What is dependent and independent variable in " will birds with shorter or longer wings fly faster ? ?

Ais an organization collection of data in digital format that users to keep track of information

(psychology) i basically have to make a mnemonic device for a vocab term from the lesson, the word i chose was anterograde amnesia ( loss of memory from the point of injury or trauma forward, or the inability to form new long-term memories.) i'm not that creative and my brain feels dead so plzzz if you could i'd be sooo !

Facial shaving brushes are either bulb-shaped or fan-shaped. an experiment is to be conducted to determine whether the lather thickness is the same for both types of shaving brushes. in previous studies, it was determined that shaving brush size (small, medium, large) is associated with lather thickness, but shaving brush type (wolf whiskers, maggard razors, frank shaving, and so on) is not associated with lather thickness. how could the experiment best be conducted? by blocking on shaving brush size by blocking on shaving brush type by blocking on shaving brush shape by blocking on lather thickness without blocking