The choices below list different levels of biological organization. Which listed level of organization includes all of the other levels in the list?

Which root means toward?

Give an example of a word that uses the root ex- or ec-. 

Magnesium chloride (MgCl2) is a salt that dissolves in water. Which of the following statements is true about Mg? Use the images provided to help you answer the question.     

Electrons are negatively charged and protons are positively charged.

If the polymer labeled B in the diagram below represented a protein, what type of bond (indicated by “E”) would link one monomer to another monomer?  

Provide a definition for the following word given your knowledge of roots:  blastocyst.  

The reaction below is what type of chemical reaction?  

This root means through or across:

Examine the two compounds below and then answer the four questions that follow. Please label your answers as “a”, “b”, “c”, and “d” to match the four questions below.   Part a.  What do these two compounds have in common?    Part b.  How are these two compounds different?  Part c.  Given your answers to the questions above, what is the term used to describe these two compounds?  Part d.  The compound on the right contains a functional group that is not found in the compound on the left. Give one property that a compound could gain as a result of having a particular functional group.