What do two different neutral isotopes of the same element have in common?

The population of bacteria in a petri dish doubles every 40 seconds. the population of the bacteria is initially 400 organisms. what unit is most appropriate for the time at which the number of bacteria is 300? hour bacteria per hour second bacteria per second

Name the types of burns one can get and which structures of the integument are damaged

Mineral rich water heated by newly found oceanic crust escapes through cracks in the ocean floor called