A sentence :
i read a book about "responding variable".
hope that helped!!
The doctors could simply monitor the symptoms of an infected person. If the infected person sneezes or coughs, then the virus is likely airborne or transmitted from infected surfaces. If no obvious symptoms that would facilitate transmission are detected, the scientists can test for the presence of the virus in the food and drink at the party.
The nitrogen cycles<span> represent one of the most important nutrient cycles found in terrestrial ecosystems... </span>
B. Water potential decreases sugars are moved out