Explain, using Heidi Helicobacter's story as an example, how microbes can be both beneficial and harmful. Provide at least one more example of a benefit obtained from a microbe and an example of harm that can be caused by a microbe. Be as specific as you can.

New york city has 2,181 inhabitants per square mile. the state of alaska has 1.03 inhabitants per square mile. ecologists would say alaska has a low exponential growth population density birth rate carrying capacity

What is the difference between how ionic and covalent bonds form

Nephrons, the functional unit of kidneys, are responsible for formation of urine. the sentences describe situations that are the result of problems in the urine formation process. for the nephron shown below, match each situation to the step in the urine formation process where the problem lies.