Unit Test — Unit test Answers

Which of the following is not a reason for cluster distribution of organisms?a.localized availability of resourcesb.herd behaviorc.hive behaviord.territorial behavior

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

These two graphs represent _______ and _______ selection. a. directional; stabilizing b. stabilizing; disruptive c. disruptive; static d. static; directional Please select the best answer from the choices provided

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

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

Disruptive selection events select for _______.a.common traitsb.genetic uniformityc.camouflage traitsd.extreme traits

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

Stationary population pyramids are representative of countries with shorter than average life expectancies.

Which of the following best describes the relationship between jaguars and panthers?a.Panthers and jaguars are separate species.b.Panthers are jaguars with predominantly dark or black pigmentation.c.Juvenile jaguars are black and called panthers.d.During winter Jaguars’ coats change from spotted to black.

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