As an example of natural selection, ____________ colored moths prevailed on ____________ tree trunks following the Industrial Revolution. ( A time in which dark colored pollutants were released and covered large areas of the atmosphere)  

The process by which organisms maintain a relatively stable internal environment is:

Among other things, prokaryotes differ from eukaryotes by:  

Which bond is the weakest?

An atom has six protons and eight neutrons. Its atomic number is _______.

Which transport process requires ATP?  

In photosynthesis, energy for the cell is produced in the:  

A plant cell in a hypotonic solution will:  

The pH scale is:  

Chlorine has seven electrons in its valence shell. The number of electrons it wants to gain to complete its valence shell is: