Why are plant cell and animal cell difrent in shape?

In plant cells, the vacuole is very large, which can take up its more than half of cell’s volume. It stores a large amount of water but in an animal cell it is not very large. Plant cells are not significantly square although they serve to have different points and be slightly rectangular. It possesses a cell wall but the animal cell does not possess a cell wall. It only possesses cell membrane. Plant cell contains chlorophyll but the animal cell does not contain this organelle.  

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 .. .

it would be c. xylem.