Which statement about skin-fold measurements is true?
(a) they are not very precise.
(b) they are a practical way to assess body composition.
(c) they are difficult to perform on a normal weight individual.
(d) they are an expensive mode of assessing body compos

The concept of ensures that wounded soldiers receive treatment based on their severity of their wounds rather than their seniority

[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.

Which of the following is true about vigorous intensity movements. playing single tennis or riding a bike on a hilly surface playing soccer riding bike on a flat surface playing double tennis or playing basketball all of the above