B5.  The target cells for ADH are found in which organ?

In an ecosystem, what provides the energy for heterotrophic organisms?

In terms of microbial diversity, what would you expect to find when examining a sample of ice water obtained from the North Pole?

What is the niche called in which an organism is the most successful?

Mutualisms may become prolonged, intimate and obligate symbioses through the process of __________.

Comparing two solutions with a pH of 4 and 6, by what factor does the solution with pH 4 have more hydrogen ions than solution with pH 6? 

Atomic number is the number of ____________________ in an atom.

Examine the graph below and determine the dependent variable.

Water bonds to other materials through a property called ______________.

Comparing two solutions with a pH of 4 and 6, which solution has more hydrogen ions?