Biology, 13.02.2022 19:30 dillionmaggio
Which of the following would be the best experimental design?
Multiple choice question.
A.)Dr. Smite exposes 10 petri dishes of bacteria to chemical treatment, and 10 dishes in the same room are left untreated. She checks growth on each after 2 days.
B.)Dr. Smite exposes 2 petri dishes of bacteria to chemical treatment, and 2 dishes in the same room are left untreated. She checks growth on 2 dishes after 2 days, and her assistant checks the other two.
C.)Dr. Smite exposes 2 petri dishes of bacteria to chemical treatment. She checks growth on each after 2 days.
D.)Dr. Smite exposes 2 petri dishes of bacteria to chemical treatment, and 2 dishes in the same room are left untreated. She checks growth on each after 2 days.
E.)Dr. Smite exposes 10 petri dishes of bacteria to chemical treatment, and 2 dishes in another room are left untreated. She checks growth on each after 2 days.
Answers: 3
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Hector is back from his morning run and is feeling light-headed because his energy is depleted which food item will provide him with a quick source of carbohydrates
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Biology, 22.06.2019 09:30, ceeejay0621
Juan and carol were studying invertebrates in biology. they knew that segmented or earth worms preferred a dark, moist habitat. during this lab, they would be investigating the responses of organisms called planaria or dugesia tigrina. these were simple flatworms that still had a one-way digestive system and a very simple nervous system. juan and carol placed the planaria in a petri dish containing cool, distilled water that was partially covered with black paper. they shined a light on the dish. next, they removed the paper and placed a small amount of chicken liver at one end of the dish. they added a few large salt crystals to the water. finally, they added drops of hot water to the cool water in the petri dish. their results can be seen in the data table. according to their experiment, all but one conclusion is valid.
Answers: 1
Which of the following would be the best experimental design?
Multiple choice question.
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