Exocytosis moves materials out of a cell.
Endocytosis moves materials into a cell.
Active transport uses carrier proteins. (not entirely sure about this one... check it out to be sure)
Molecules move from an area of high concentration to an area of low concentration by passive transport.
C. cell wall. This discovery was made by Robert Hooke upon studying the honeycomb like structure of cork and compared it to the dead appearance of the cell wall.
Increasing predator population
The measurements taken by Jay are least likely to contain random errors.
When you increase the number of measurements, the random errors tend to minimize, because errors in one direction cancel with errors in the opposed direction.
