The external ear and the epiglottis are made mostly from _____, which allows for flexibility.

Which of the following bones is unique in that it is the only bone that does not articulate with any other bone?

The central nervous system refers to the ___.

In the figure above, which cell wall contains Lipopolysaccharide (LPS) which is toxic to human cells?

Which structure allows bacteria to attach to surfaces (select all that apply)

Which class of microorganism is acellular (not composed of cells) and consists of RNA or DNA surrounded by protein?

In the figure above, which cell wall is most susceptible to Penicillin and Lysozyme?

In the figure above, which cell wall is that of a Gram positive?

Which of the following are components of the plasma membrane (select all that apply)

Algae and some bacteria are photoautotrophs.  Which of the following statements best describes a photoautotroph? (select all that apply)