In a forest 150 deer were caught, tagged with electronic markers, then released.

游客2025-02-27 50

问题 In a forest 150 deer were caught, tagged with electronic markers, then released. A week later, 50 deer were captured in the same forest. Of these 50 deer, it was found that 5 had been tagged with the electronic markers. If the percentage of tagged deer in the second sample approximates the percentage of tagged deer in the forest, and if no deer had either left or entered the forest over the preceding week, what is the approximate number of deer in the forest?

选项 A、150
B、750
C、1,250
D、1,500
E、2,500

答案 D

解析 5 out of 50 deer is 10 percent. If this is representative of the percentage of tagged deer in the forest, then the 150 tagged deer are 10 percent of the 1,500 total deer in the forest.

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In a forest 150 deer were caught, tagged with electronic markers, then released.

Inaforest150deerwerecaught,taggedwithelectronicmarkers,thenreleased.

Neotropicalcoastalmangroveforestsareusually“zonal,”withcertainmangr

AlthoughthehumanpopulationaroundtheforestlandinMiddlesexCountyhasincr

In"quick-response"manufacturing,themanufacturerreceiveselectronicfeedback

Theevolutionofthetechnologyofmicroelectronicsoverthepastdecadehasbee

Tropicalbatsplayanimportantroleintherainforestecosystem,aidinginthe

Cocoagrownorganicallyontreeswithintheshadeoftherainforestcanopycomm

FORESTALL:A、extendB、precipitateC、vacillateD、proclaimE、stabilizeB

RICKETY:FURNITURE：：A、petrified：forestB、alloyed：metalC、ragged：clothingD、spec

A、informthereaderofthepotentialcauseofcertainchangesinrainforestcom

WhenIwaswalkingdownthestreettheotherday,Ihappenedtonoticeasma

【S1】[br]【S6】dangerous→endangered易混形容词的误用。dangerousspecies是“危险的物种”，而上下文是说有些物种处

Theunderlinedsentenceinparagraph1means______.[br]Accordingtothestory

Overacenturyago,AlfredRussellWallacewrotethat"weliveinazoologi

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