Which of these is not an effective way to gauge the level at which your body is working during exercise? a) perspirationb) heart ratec) talk testd) thirst

[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.

Discuss how seniors can combat health problems they may face.

Oprincipal hormônio sexual masculino é a testosterona, que é produzida pelas células do testículo chamadas de células de leydig. o responsável por estimular a produção da testosterona é: escolha uma: a. o hormônio luteinizante. b. a progesterona. c. o hormônio folículo-estimulante. d. a androstenediona. e. o estrógeno.