Question

what is missing: memory is taking stuff in, ______, then bringing it back out again? processing it storing it encoding it

Explanation:

In the context of memory processes, the typical stages are encoding (taking stuff in), storage (keeping it), and retrieval (bringing it back out). The sequence here is "taking stuff in" (encoding), then the next stage before retrieval is storing the information. "Processing it" is more related to encoding or other cognitive processes, and "encoding it" is the initial taking in. So the missing part should be "storing it" as the middle stage of memory (encoding - storage - retrieval).

Answer:

storing it