I need da help wit dis 1

What protects the lining of the stomach from acidic gastric juices?

!if we removed the wolf, snake, and hawk from this food web, what best explains the impact it would have? a) the number of producers would increase. b)the number of decomposers would increase. c)the number of primary consumers would increase. d)the numbers of primary consumers would decrease.

What does the positioning of transcription factors determine?