To model the movement of water through the stem of plants, a scientist placed capillary tubes of different diameters in shallow pools of water. The scientist noticed that the water would climb up the capillary tubes to different heights. The height of each water column is plotted. Part A:
Identify a property of water that contributes its movement through the capillary tubes. Explain how the molecular structure of water contributes to this property.
Plants use a similar mechanism to move water through their stems. In a specific species of plant, the vessels are approximately 0.3 mm in diameter.
Part B:
Estimate how tall this species of plant can grow. Explain how the molecular structure of the vessels can be modified to increase the maximum height of the plant without changing the diameter of the vessels.

relative dating involves things like higher layers are most recent than rocks lower in the sequence. this can be extended to the known sequence of fossils. rocks containing rabbit fossils are later than those containing dinosaur fossils.  

absolute dating methods mainly use radioactive elements that have known rates of decay and produce recognizable products. for example potassium 40 decays to produce argon. once a rock has solidified the argon is trapped. by measuring the argon and potassium0 you can get an accurate number for the age.  

some other methods are good for archaeological ages. dendrochronology involves recognizing the sequence of tree rings. the orientation of magnetized particles in baked clay can be used to date a fire.

hope this .. .

b is dominant over the allele for the white fur.

prothallium

explanation: