Biology, 28.08.2020 17:01 fooodluver4002
Norman thinks that the brain function of students suffers when they receive less sleep. He predicts that students who get less sleep before an exam will receive lower test grades. To investigate his idea, he tests two groups of chemistry students. Group 1 receives four hours of sleep, while Group 2 receives the recommended eight hours of sleep the night before the exam. Both groups consume the same foods before testing. They then take the same exam in the same room. What experimental factors could have been a possible source of error in Norman's investigation?
A. the food students consumed before the exam
B. the amount of sleep students received before the exam
C. the grades students earned on their exam
D. the temperature and light of the testing room
Answers: 1
Biology, 21.06.2019 15:50, cyrusshakeri4814
How does land development destroy ecosystems? it increases human carrying capacity too rapidly. it converts them into residential or agricultural areas. it forces humans to import non-native plants and animals. it expands the natural range of native wildlife species.
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Biology, 21.06.2019 18:50, Angel13613
Ectocarpene is a volatile, sperm cell-attracting material released by the eggs of the seaweed ectocarpus siliculosus. its constitution is all the double bonds are cis, and the absolute configuration of the chirality center is s. draw a stereochemically accurate representation of ectocarpene.
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Biology, 22.06.2019 01:00, akitchen10
An example of internal feedback working to maintain homeostasis is your a. decreased respiration rate when you are studying b. decreased heart rate when you are sad c. increased respiration rate when your muscles need more oxygen d. increased heart rate when your lungs need more oxygen
Answers: 1
Norman thinks that the brain function of students suffers when they receive less sleep. He predicts...
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