Process where usable solutes are reclaimed by the body. a. filtration b. reabsorption c. secretion d. urination

I’m doing some practice exam questions for biology, and i’m not sure how to do these 3 parts to the question.

Most of the fossils found in virginia are in the coastal plain, valley, ridge, and appalachian plateau regions, best suggesting that these geographic provinces a) were once covered by seawater. b) are the oldest parts of virginia. c) have a great deal of karst topography. d) have large amounts of sedimentary rock.

Look at the photo of the leaf. which term best describes this leaf?