Many species of organisms are found only on islands. lemurs are found only on madagascar and koalas only on australia. which factor contributes most to this situation. answer key: a) small land area. b) fewer predators. c) genetic isolation. d) limited food variety

The answer is C. Good Luck!!

the real answer is b. scintillation counter

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.