A classification system is a system with a distribution of classes created according to common relations.
Ok 28_________________________
Answer:
The digestive system works very closely with the circulatory system to get the absorbed nutrients distributed through your body. ... While the digestive system collects and removes undigested solids, the excretory system filters compounds from the blood stream and collects them in urine.
Several species or warblers can live in the same spruce tree only because they occupy different nitches within the tree. Hope this helps!
