Population ecology
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Survivorship curves show what fraction of a starting group is still alive at each successive age. There are three
types of survivorship curves that a species can exhibit: Type 1, Type II, and Type III.
Which of the following statements regarding survivorship curves is accurate?

black

lasagna

lunch

math

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.

i think its both a and b