What has to happen first for water to continually move through the plant (up the
xylem tubes)?

A. water moves up the water (xylem) tubes in the
trunk of the tree

B. water evaporates from the leaves

C. water enters the roots of the tree

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.

Indicate the coat color and the proportion of offspring with that color for each of the following crosses of rabbits. assume all are homozygous. albino x albino a) 1/4 chinchilla, 3/4, agouti b) 3/4 albino, 1/4 chinchilla c) all albino

In which state was more than 100 billion tons of coal mined in 2005?