What kind of graph is this? Is there a pattern to the data? (Example: Direct/inverse relationship, straight line, bell-shaped curve, u-shaped, s-shaped, does it plateau?)

answer; /// i believe the correct answer is (thrombocytopenia); (a)

maritime tropical may be your answer.

the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.