Which of the following species would you most expect to be distributed according to a regular pattern?

a. termites

b. stingless bees

c. fish

d. creosote bushes

D is the right answer - you would most expect creosote bushes to be distributed according to a regular pattern. Ecologists have investigated this phenomenon and found there are a host of reasons why this might be, although the most likely case is root competition for very limited water sources.