why would your girl not chat with you after like 3 days? me and mine haven't at all on here the last three i feel sad to and down a lot

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

Describe speciation of the galapagos island finches in terms of geographic isolation

Types of scientific inquiry that biologist engage in that cannot be completely controlled