Astar begins with a mass 8 to 20 times that of the sun's mass will do what

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

How do accessory pigments chlorophyll?

Of seawater increases with decrease in the temperature. therefore, the cold water sinks to the deeper layers at the bottom