They found fossils of algae, snails, and clams in layer D. Given that information, where do you think they found fossil evidence of simple land plants and amphibians? A) A. B) E. C) F. D) G.

this would be a 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.

looks like the answer is     c     to me!