Biology

Biology, 16.09.2019 17:10, yvette2003

He decides to do an experiment to test what type of food will make his chickens fatter . before the experiment, the chickens weigh an average of 5 pounds . david makes two groups of chickens . he feeds group a rice everyday, and feeds group b corn everyday. after one month, david weighs the chickens to see if they gained any weight . group a weighs an average of 5 pounds and group b weighs an average of 7 pounds.

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Biology, 08.07.2019 01:30, TheMixingToad

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Biology, 04.09.2019 08:10, ciaraCochran1876

in 1887 a strange nerve disease attacked the people in the dutch east indies. the disease was beriberi. symptoms of the disease included weakness and loss of appetite, victims often died of heart failure. scientists thought the disease might be caused by bacteria. they injected chickens with bacteria from the blood of patients with beriberi. the injected chickens became sick. however, so did a group of chickens that were not injected with bacteria. one of the scientists, dr. eijkman, noticed something. before the experiment, all the chickens had eaten whole-grain rice, but during the experiment, the chickens were fed polished rice. dr. eijkman researched this interesting case. he found that polished rice lacked thiamine, a vitamin necessary for good health. what was the problem? type your response here (in complete sentences)

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Biology, 04.09.2019 08:20, magalya01

In 1887 a strange nerve disease attacked the people in the dutch east indies. the disease was beriberi. symptoms of the disease included weakness and loss of appetite, victims often died of heart failure. scientists thought the disease might be caused by bacteria. they injected chickens with bacteria from the blood of patients with beriberi. the injected chickens became sick. however, so did a group of chickens that were not injected with bacteria. one of the scientists, dr. eijkman, noticed something. before the experiment, all the chickens had eaten whole-grain rice, but during the experiment, the chickens were fed polished rice. dr. eijkman researched this interesting case. he found that polished rice lacked thiamine, a vitamin necessary for good health. what was the problem? type your response here (in complete sentences)

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