Biology, 01.08.2019 06:00 homeschool0123
Ascientist plans to find out the cause of decrease in bird population in a location. he interviews 50 people who work in the local oil mine and 45 of them believe that the mine does not affect the birds. the scientist concludes that 90 percent of people in the location believe that the local oil mine does not cause decrease in bird population. why is the scientist's conclusion most likely unreliable?
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Biology, 22.06.2019 04:00
The nervous system interacts with the endocrine system by a. using hormones as connections b. sending nerve impulses directly to glands c. using neuroendocrine cells as connections d. sending neurotransmitters directly to neurons
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Biology, 22.06.2019 20:50
Assume that you are interested in separating short (200-400 bp) dna molecules from a pool of longer molecules in the 10,000-20,000 nucleotide range. you have two recipes for making your polyacrylamide gels: one recipe uses 1.5 percent agarose and would be considered a “hard gel,” while the other uses 0.5 percent agarose and would be considered a loose gel. which gel should you use to separate the short (200-400 bp) dna molecules from a pool of longer molecules in the 10,000-20,000 nucleotide range?
Answers: 3
Ascientist plans to find out the cause of decrease in bird population in a location. he interviews 5...
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