Chemistry, 09.10.2019 00:20 ccompassimvu
Gregory wanted to know what type of food spiders prefer to eat, so he performed two different investigations. in one investigation, he observed a spider in his backyard every day for thirty days. he wrote down what the spider ate each day. in another investigation, he placed the same type of spider in an aquarium that recreated a portion of his backyard environment. each day, for thirty days, gregory placed four different items in the aquarium—a leaf, a cricket, a fly, and a beetle. then, he wrote down which item the spider chose to eat first. which investigation produced the most reliable results? a. both investigations have benefits and limitations and should be examined together to get the most reliable result. b. the first investigation would produce more reliable results because it only required daily observation. c. neither investigation would produce useful data. d. the second investigation would produce more reliable results because gregory was able to control the conditions of the experiment.
Answers: 2
Chemistry, 22.06.2019 09:00, yogibear5806
Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.
Answers: 2
Chemistry, 22.06.2019 13:30, Sbeech7246
Why does asexual reproduction result in offspring with identicle genetic variation
Answers: 2
Gregory wanted to know what type of food spiders prefer to eat, so he performed two different invest...
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