Determining Population Size Answers

For which method of determining population size is the population not aware of the sampler’s presence?a.mark/recaptureb.direct observationc.samplingd.indirect observation

Tagging animals is indicative of which type of method to determine population size?a.mark/recaptureb.direct observationc.samplingd.indirect observation

The equation total # of people in an area/(land) area in km2(or mi2) is used to calculatea.growth rateb.population densityc.death rated.carrying capacity

Which of the following is a density-independent factor?a.diseaseb.predationc.natural disastersd.stress

Which of the following statements about exponential growth curves is true?a.Exponential growth curves are common for R-selected species.b.Exponential growth curves show fast growth rates followed by slow growth rates.c.No organisms in nature experience exponential growth rates.d.Exponential growth curves are S-shaped.

When tagging animals specifically for the study of population size, scientists must do all of the following EXCEPT: a. tag all individuals during the first study to ensure accurate results b. make sure that markings do not harm the animal c. ensure that tags are non-toxic and will not come off of the animal d. ensure that the location and color of the tag does not draw the attention of predators Please select the best answer from the choices provided

Which is not a difference between a population showing exponential growth and a population showing logistic growth?a.food limitsb.disease limitsc.carrying capacityd.mutation rate

Which of the following methods involves counting the number of organisms in a specific area?a.mark/recaptureb.direct observationc.samplingd.indirect observation

Logistic growth curves are density-dependent.

The mark and recapture method of determining population size is always more effective than the sampling method.