A structure made up of two or more types of tissues that performs a specific set of functions is at what level of organisation

Hybrid instruments that play sounds that are part sampled and part synthesized are known as:

How much time has elapsed from the very beginning of "the memior of the conquistador bernal diaz del castillo" to the end? a. castillo's whole life b. a quarter of an hour c. a few weeks d. a decade

Wich level of organization includes all the other levels or organizations