Why is it that although single myosin molecules have a polarity, the myosin in thick filaments is
symmetrical?

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

The pharynx is the structure in the body that serves as a pathway of both air and food. how does the body make sure that food does not get into the lungs? the salivary glands secrete enzymes that pull food out of the air pathway. the small intestine pushes the air out of the digestive system. the pancreas breaks down food in the air pathway. the epiglottis closes the air pathway so that food will not enter it.

Why did rutherford say that bombarding atoms with particles was like "playing with marbles" what