Where are blood cells produced? in the periosteum in the haversian canals in the bone marrow in the ligaments

(! ) what’s fracking and what does it have to do with carbon, carbon dioxide, or fossil fuels?

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

1) what three conditions must be present for minerals to form through natural processes? 2) why are minerals considered inorganic substances? 3) how do oxides differ from other minerals that contain oxygen atoms? 4) how is a sulfide different from a sulfate? what makes native elements unique?