Orgainsm. This is the only word that makes sense. The statement is already talking about interrelated systems, so system wouldn't be the answer.
Tissue and Organ do not define a functional plant or animal either.
I hope this helps!
Hey You!
It lasts about 90 minutes for a normal person.
Darwins <em>theory</em> of <em>evolution</em> explains how modern organisms evolved over long periods of time through descent from common ancestors. <em>Darwin</em> meant that different, yet ecologically similar, animal species inhabited separate, but ecologically similar, habitats around the globe.
The shrinking of a plant cell membrane away from the cell wall when placed in a hypertonic solution is called a plasmolysis... I don't know if that can be of any help :)
