A scientist wishes to represent the location of an earthquake in California. Which type of model is most appropriate for this purpose?

Alaska and northern canada have a diet rich in vitamin d and their skin color is darker than predicted on the basis of iv intensity at their latitude. explain the observation:

The first signs of cellular differentiation occur in the blastocyst. why is cellular differentiation important for the development of a fully formed human infant?

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