Which of the following statements about chemical dependency is true? a. chemical dependency is also known as alcoholism or drug addiction. b. codependency is uncommon in families with chemical dependency issues. c. a person who is chemically dependent on a drug often becomes driven to avoid the drug. d. teens from families plagued with chemical dependency are at a lower risk for being harmed by violence and sexual abuse. the answer is not c

Ricky is interested in the health and safety or animals and humans. she wants to pursue a career that allows her to monitor diseases in both animals and human populations. which career should ricky pursue?

[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.

Why is important to cover your hands and feet in cold weather? a. they are furthest from your heart. b. they are often last to receive blood flow. c. they can suffer from tissue damage in cold weather. d. all of the above