What is the main source of nutrients for autotrophs?

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

What is the main reason that attitudes are more often revealed in spoken rather than written language? a. in writing, we try to put the "best face" on what we write. b. we speak far more often than we write. c. in writing, we can more easily conceal our attitudes. d. in spoken language, we are often careless in our use of words.

Which material is commonly used as a culture medium for living cells