Why does this recent discovery about the Galapagos finches prove that it's often challenging for scientists to determine when two groups of individuals are separate species? What factors do scientists need to consider when determining
whether a species is a new species or part of an existing species?

organ system-an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.

a plastic spoon that has a temperature of 78° f is placed into a bowl of soup that has a temperature of 84° f. which of these correctly describes what will happen?

energy as heat moves from the soup to the spoon.

a = executive branch; b = judicial branch