Which of the follow mimics the process of diffusion in a way that is similar to the way that capillaries exchange materials between the blood and tissues in the body? a. ants gathering near a drop of honey
b. moths moving to a camp fire
c. tea seeping in a cup of hot water
d. fans running towards a popular band

[120 total points] (public health) in one of the largest human experiments ever conducted, in 1954 a randomized controlled trial was run to see whether a vaccine developed by a doctor named jonas salk was effective in preventing paralytic polio. a total of 401,974 children (ages 6–9), chosen to be representative of those who might be susceptible to the disease, were randomized to two groups: 200,745 children (the control group c) were injected with a harmless saline solution (a placebo) and the other 201,229 children (the treatment group t) were injected with salk’s vaccine.what was the point of giving saline solution to the children who didn’t get the vaccine? explain briefly.

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True or false. bulimia can begin with a weight-loss diet.