Xylem is a plant tissue made up of elongated cells stacked end to end the length of the plant's stem. Which function is xylem specifically adapted to perform in plants?
A. Trasnsport water from roots to leaves
B. Help prevent water loss
OC. Capture sunlight for photosynthesis
D. Exchange gases with the atmosphere

If the speed of a particle triples ,by what factor does its kinetic energy increase?

An engine undergoes a cycle as shown in the diagram. during a complete cycle the work done by the gas is 28.5×103 j and the energy transferred thermally out is 99.4×103 j. there are 1.5×1024 gas molecules and they have three active degrees of freedom. 6. (6 pts) during which process(es) is energy transferred thermally into the gas? a. 1→2 b. 2→3 c. 4→1 d. 1→2 and 4→1 e. none of the above

Adolphin emits ultrasound at 100khz and uses the timing of reflections to determine the position of objects in the water. part a what is the wavelength of this ultrasound? assume that temperature of water is 20 degrees c. answer in cm