Rick’s class plans to study the effect of eating different breakfast foods on grades in morning classes. students in the class will be the test subjects for the investigation. which of the following would most likely make the results of the experiment invalid?

Hello. This question is incomplete, answer options are missing. The options are:

"a)Half of the students ride the bus to school, and half ride in cars.  b)Some students eat breakfast two hours before other students do.  c)Some students miss school during the investigation due to illness.  d)All students in the investigation have morning classes in the same subjects."

b)Some students eat breakfast two hours before other students do.

Explanation:

In a scientific experiment like the one shown in the question above, it is essential that students show no variation in the times they eat. This is because any variation would lead to differences in the digestion of each student and would result in an inaccurate and unreliable result.

More fully explained, we can say that if some students ate two hours before other students, the research could be invalid. This is because students would have different stages of digestion and this would not allow them to evaluate the effects of eating different breakfast foods on morning class notes.

there's no big difference.

explanation:

the only little different between a rabbit and bunny is just that bunnies are much smaller than rabbits. bunnies are basically baby rabbits.

measuring physical properties lab reportinstructions: in the physical properties lab, you will test the physical properties of different building materials in order to pick the appropriate materials for a new home in tiny world. record your observations and test measurements in the lab report below. youwill submit your completed report.name and title: lyric lawton, mr.herbert, 10/13/17, physical properties lab. objective(s): i need to parvus build his house out of the right material, so he will stay cool in the mountains.hypothesis: if we use wood to build the roof of the house, then the temperature inside the house will remain cooler.if we use clay brick to build the walls and floors of the house, then the temperature inside the house will remain cooler.if we use aluminium to bring electricity into the home, then it will allow electricity to flow into the home at a faster rate.if we use iron to construct the latches on the windows and doors, then the magnetism will keep the latches secure.