http://www.dw.de/change-in-the-environment-ask-an-indicator-species/a-18009616 Indicator species such as pikas or frogs can signal a biological change in an ecosystem and can be used to diagnose its overall health, helping conservation efforts. Yet, picking…
http://en.wikipedia.org/wiki/Homeostasis Homeostasis Homeostasis (from Greek: ὅμοιος, hómoios, “similar”; and στάσις, stásis, “standing still”; defined by Claude Bernard and later by Walter Bradford Cannon in 1926, 1929 and 1932) is the…
http://www.biology4kids.com/files/systems_regulation.html Homeostasis is a term that is used to both describe the survival of organisms in an ecosystem and to describe the successful survival of cells inside of an organism.…