Examples of different ways that observations can be used in scientific inquiry

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

In a cladogram' when does a group of organisms branch off

Which statement correctly describes a way that mutations increase the likelihood that a species will survive in a changing environment