Living Organisms Identification Quiz

Using visible movement as the defining characteristic of life is not enough because movements over very small scales, such as movements of molecules, are invisible to the naked eye, as mentioned in the text.

Visible movement, either growth-related or not, is considered common evidence for being alive, as stated in the text.

There is controversy about whether viruses are truly alive or not partly because they do not show any molecular movement in them until they infect some cell, as explained in the text.

<p>Professional biologists consider molecular movements necessary for life, as mentioned in the text.</p> Signup and view all the answers

<p>An example of a living organism that can breathe without visible movement is mentioned in the text as some animals, indicating that this is a characteristic of certain living organisms.</p> Signup and view all the answers