The chemical formula for sulfur dioxide is SO2.  This means there is/are __ sulfur atoms and __ oxygen atoms in this compound.

When describing the parts of a biogeochemical cycle the term “sink” refers to  

Which biogeochemical cycle is a slow cycle because the element is not found in gas form and because the main source is in rock formations, which take a long to make and to break down?

What is one reason that a certain percentage of land was preserved on islands such as Mauritius and Tobago during the 1700s when they were English and French colonies?

 A niche can be defined as 

Scientific Consensus is often interpreted as “most scientists agree” however this is misleading because science should be based on  ___ not ____.

A population is defined as 

The sequence of developmental milestones proceeds as follows:

Natural selection should favor the highest proportion of juxtamedullary nephrons in which of the following species?

The advantage of excreting wastes as urea rather than as ammonia is that