Natalia has a pure culture of E. coli that is in the exponential growth phase at this point her sample contains 640000 E. coli cells if E. coli has a generation time of 1hour how long ago was the number of E. coli cells 80000

Which plant has a visible leaf modification that will it conserve water in extremely dry environments?

The reactions that occur in the ribosome, where amino acids are combined to form proteins are anabolic or catabolic?

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.