What first caused people to consider that the continents were once one large landmass? glacier evidence in warmer countries
continents looked like they fit together
studying the valleys of the ocean floor
similar fossils were found on many continents

Which element is used in photosynthesis found in atmosphere and fixed by bacteria?

How did alexander fleming’s research solve a societal problem? he developed ways to treat inherited diseases. he advocated for regular hand washing to kill germs. he discovered a new type of medicine that could treat infections. he discovered the cause of mad cow disease, an emerging disease.

The term facultative anaerobe refers to an organism that