Which statement accurately describes the rock layers?
layer 8 is older than layer 1.
layer 3 is younger than layer 6.
layer 7 and layer 4 are the same relative age.
layer 2 and layer 9 are the same relative age.

Match the examples to the correct level of organization. 1. system level roses, snakes, puppies 2. organism level roots, stamens, leaves 3. tissue level bone, cartilage, blood 4. organ level heart, veins, arteries

Membrane vesicles containing an internal sodium chloride (nacl) concentration of 0.14 m are placed into separate beakers each containing a different solution. the first beaker contains 0.14 m sucrose, while the second beaker contains 0.14 m calcium chloride (cacl2). the temperature is 25°c. what is the solute potential inside the vesicles, expressed in units of mpa?

What is the one part of the nucleotide  that differs among the other different nucle  tides?