Determining Population Size Answers

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

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

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

The formula to calculate population density is _______.a.land area number of populationsb.number of populations land areac.number of organisms in a region land area d.land area number of organisms in a region

The three methods for determining population size are observation, mark and recapture, and sampling.

Yellowstone National Park has an average of about 4500 bison living in it. The park covers 3472 square miles. What is the population density of bison living in Yellowstone?a.1.3 bison/mib.16 bison/mic.77 bison/mid.0.77 bison/mi

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 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.

Logistic growth curves are density-dependent.

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