An example could be oil (olive, almond)
That is true, species can breed within
When 2 species bennift like fish cleaning a whale by eating off his skin
<span>The best definition of a fossil is any trace of an organism that lived in the past. Technically, a couple of the other choices (i.e. trace of an organism turned to rock, a hard part of an organism that has been preserved) could be considered within this group.</span>
