How did organisms arrive at the galapagos islands?.

There are two main ways for species to make their way to remote islands (aside from any methods involving humans). The first method is by air in the form of flying or being blown by the wind, and the second method is by the sea while swimming or floating, sometimes with the aid of rafts of tangled vegetation.

Hope this answered your question!

i think the answer is b.

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.