The population of a town is 150,000 in 2010. What would you need to know to calculate the populations doubling time?

Sea stars, sea urchins, sand dollars, and brittle stars are all memeber of a group, what is the common name of the group they are all in

The bacteria found in soil is usually harmful and measures are taken to remove any traces of microorganisms. true or false

What is one energy transformation that is taking place in the photo? radiant energy to thermal energy thermal energy to nuclear energy chemical energy to thermal energy radiant energy to chemical energy