Measuring Populations Answers

Directional selection only occurs in response to naturally occurring events.

The native range of a species includes all areas in which it lives.

Natural selection does not always result in an increase in genetic diversity.

With regards to a “Data (Age) Structure Diagram”, which of the following is an indicator of a rapidly growing population? a. a large elderly population b. a large middle age population c. a large teenage population d. a large child population Please select the best answer from the choices provided

Directional selection can be distinguished from disruptive selection by _______.a.the elimination of extreme variations of traitsb.selection for two extreme variations of a traitc.the preservation of gene frequenciesd.selection for one extreme variation of a trait

Which of the following species would you most expect to be distributed according to a regular pattern?a.termitesb.stingless beesc.fishd.creosote bushes

Stabilizing selective pressures result in _______.a.rapid, broad evolutionary changesb.limited evolutionary changesc.an increase in genetic diversityd.extreme gene distributions

Which of the following is the most obvious sign of cluster distribution in termites?a.They are insects.b.They are detritivores.c.They are social insects.d.Many species of termites are considered pests.

Natural selection is an evolutionary mechanism by which _______.a.advantageous traits are eliminated in a populationb.advantageous traits become more common in a populationc.inherited traits pass consistently through generationsd.organisms choose which traits to look for in their offspring

What are the three common patterns of population distribution?a.clumped, random, and curvedb.evenly spaced, clumped, and curvedc.clumped, evenly spaced, and randomd.random, curved, and evenly spaced