What ocean creatures are at risk from ocean acidification

amber has allowed scientists to study dna that has been preserved over millions of years.

this would be a math

that scientist would be robert hooke

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.