A classification system is a system with a distribution of classes created according to common relations.
Answer:
I believe it is be
Explanation:
Depending on the type oil, it can be natural and non renewable
Answer:
D. the maintenance of homeostasis within the body system.
Explanation:
A adaptation is a trait that helps an organism survive and reproduce.
Liver- a vital organ only found in vertebrates which detoxifies various metabolites, synthesizes proteins and produces biochemicals necessary for digestion and growth. In humans, it is located in the right upper quadrant of the abdomen, below the diaphragm.