What should you do if there is a fire in your house.

Interactional synchrony is like an "emotional dance" between caregiver and child, wherein they send important signals and share emotions. what does this process form for the child? a. a physical foundation for trust b. a basis of the drive for independence c. positive experiences that stabilize brain connections d. a basis for attachment

Wha arrow in the figure points to the section that indicates how much food is in the package/container

[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.