Biology
Biology, 06.10.2019 09:00, lllamasarebae3076

An experiment uses two groups of mice with 20 individuals in each group. both groups are fed the same amount of water and food every day. they are kept in similar cages in a climate-controlled room. the experimental group is given five doses of a pesticide every day. after two months, the amount of an enzyme in the brains of the mice was measured. use passage 1-2. the climate-controlled room is important to establish

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Biology, 25.07.2019 12:00, emmacox069
Megan wants to see if mice that are fed food a or b grow at a faster rate. she measures the mass of the mice on day 1, then divides them into two groups based on the type of food they will be given. she feeds each group the same amount of food at the same time each day. does megan have a control group in this experiment? no, there is no control group because she changes more than one variable. no, there is no control group because each group is treated under test conditions. yes, the mice that are fed food a are the control group, and those that are fed food b are the test group. yes, the mice that are fed food b are the control group, and those that are fed food a are the test group.
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Biology, 21.08.2019 14:30, jordan2875
Alex does an experiment to see if mice grow faster when given different food sources. he has two groups of mice. one group he feeds food a, and the other group he feeds food b. after 6 weeks, there is no difference in the growth rates of the two groups. however, he notices that the mice being fed food b have thicker fur. what question could he ask next? a. what part of food b is making the mouse fur become thicker? b. which mouse was the prettiest? c. would the mice prefer food c?
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Advanced Placement (AP), 26.09.2019 22:30, nani122
After reviewing his annual costs, a scientist notes that the feed bill always spikes over the summer months. he wonders if his research mice eat more when the air conditioner is operating. luckily his lab has two separate rooms. the scientist divides his mice into two groups of 50, group a and group b, and places them in the separate rooms. both groups are kept in enclosures where they have free access to food at all times. to establish a base line, he tests the hunger level of the two groups by monitoring their food intake for 7 days. the mice in group a ate an average of 31.2 grams of food per day. the mice in group b ate an average of 32.6 grams of food per day. then, the scientist turns on the air conditioner in room a and leaves room b as is. after 7 additional days, the scientist again averages the amount of food eaten by each group. the mice in group a ate an average of 30.7 grams of food per day. the mice in group b ate an average of 31.2 grams of food per day. because the difference between the two groups was so small, and so close to the amount they ate before the experiment, the scientist concludes that the air conditioning did not impact their appetites.read the mice scenario in order to answer the following question. write a valid hypothesis for this experiment.
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