You notice the baseball and soccer field at school are getting torn up by gophers, but you want to know how many there are so you can capture them all. One day you go out and catch 15 to tag and release. A week later you catch 12, and 9 of them are marked. How many gophers are there in the population?
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Which phrases describe an extrusive rock? check all that apply. fine texture cooled slowly small crystal size found deep underground different, easily observed minerals
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Which of the following particles always has a positive charge? a. electronb. neutron c. proton d. ion
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You notice the baseball and soccer field at school are getting torn up by gophers, but you want to k...
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