Despite problems with tagging organisms over extended periods of time, scientists do study populations for extended periods. Which of the following is not a case where a scientist would track individuals for an extended period?
a. studying the effect of contraceptives for population management of "pest species", deer for example
b. studying members of an endangered species to monitor longevity or reproduction.
c. studying the long term effects of a pollutant
d. studying how fish evade motor boats