How do new introduced species become established in a new ecosystem

The bacteria found in soil is usually harmful and measures are taken to remove any traces of microorganisms. true or false

Which statement about the pancreas is not true? a. it is an endocrine organ in the abdomen. b. it release chemicals into the digestive system. c. it releases insulin to increase glucose levels. d. it release hormones into the bloodstream.

Any sound above what db can cause hearing loss in human beings