Biology, 29.07.2019 20:00 Pranav2004
What types of minerals are among the most widely used in the world? a. metals b. alloys c. gemstones d. nonmetals
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Biology, 21.06.2019 16:30
25) a student takes four samples of a white crystalline solid and places each in a well plate. on top of each sample, she carefully places 20 drops of clear mystery liquids a, b, c and d. her results for each well are: liquid a: the solid dissolves quickly. liquid b: the solid appears unchanged. liquid c: a brownish colored liquid is produced. liquid d: fizzing occurs and the well becomes warmer. in which well does a physical change occur?
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Biology, 22.06.2019 06:00
Other than earth, is also known to have magnetic pole reversal? a: venus b: mars c: earths moon d: the sun
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Which member of the following food chain will be least affected by ddt, a pesticide water pollutant, if bio-magnification is occurring? algae> zooplankton> crayfish> leopard frog> large mouth bass
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Biology, 22.06.2019 12:30
Is becoming less expensive to screen blood samples for dna certain diseases have genetic basis what is possible ethical concern about the availability of inexpensive dna testing
Answers: 1
What types of minerals are among the most widely used in the world? a. metals b. alloys c. gemstone...
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