Nitrogen -fixing bacteria take in nitrogen gas from the air and produce nitrogen compounds that living organisms can use. which organism can directly use these nitrogen compounds?

(drag each tile to the correct location.) categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both. - a tentative statement used to guide scientific investigations. - makes predictions about future events. - can be tested by many independent researchers. - based on observations of natural phenomena. - a well-established, highly reliable explanation.

Mr. olajuwan was in a horrific snowmobile accident. afterwards he had trouble walking and he had a loss of balance. which of the 4 major brain region was probably demaged

All eukaryotic cells contain small bodies called