Julie is a scientist and she is doing an experiment on guinea pigs. she feeds one group of guinea pigs grapes and the other group strawberries.
she injects both groups of mice with the flu virus. the mice that ate the grapes did not get the flu, but many of the mice with the strawberry diet became sick with the flu.
julie concludes that people who eat grapes will not get the flu when exposed to the virus.
problem:
is julie's conclusion valid?
no, julie didn't test the grape diet on humans.
yes, the experiment showed that eating strawberries will not protect you from the flu.
no, the grape diet didn't adequately prove it could protect against the flu virus.
yes, the experiment showed the grape diet did protect the guinea from the flu
Answers: 2
Physics, 22.06.2019 09:00
Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 2 options: the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the cold balloon expands and rises. the warm balloon shrinks and sinks. the warm balloon expands and rises. the cold balloon shrinks and sinks.
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Physics, 22.06.2019 10:30
Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?
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Suppose the house in question 3 is located in cleveland where the annual average solar flux is 160 w/m2 . if 10 m2 of solar panels operating at 20 percent efficiency were installed on this house to collect and store solar energy in the form of hot water:
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Julie is a scientist and she is doing an experiment on guinea pigs. she feeds one group of guinea pi...
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