What lies together to form compact bone tissue?

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

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

What are antigens and antibodies? how are they involved in the body’s response to incompatible blood?