Which of the following employees are following ergonomic principles? Check all of the boxes that apply. A nurses realizes that a load is too heavy to lift on her own, so she asks another nurse to help her.

A technician lifts a heavy load on his own, even though it is too heavy for him to carry.

A physician’s assistant lifts and carries a heavy load that is manageable, and wears a back brace for support.

The answer is A nurses realizes that a load is too heavy to lift on her own, so she asks another nurse to help her.

The other answer is, A physician's assistant lifts and carries a heavy load that is manageable, and wears a back brace for support.

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to prevent people from getting the ebola virus, countries around the world paid to doctors develop a new vaccine. now that the vaccine has been made, doctors will need to experiment on a large number of people to find out if it works safely.

what is the greatest limitation that scientists are dealing with as they try to figure out how to experiment with the ebola vaccine?

meditation is a practice of sitting still and quiet for minutes or even hours. it has been practiced for thousands of years and is even a part of religious practices for some people. carefully controlled, repeated measurements of brain activity have shown that meditation does increase certain chemicals in the brain and even grows the part of the brain that people connect with their current surroundings and activities.

are claims about the effects of meditation most likely scientific or pseudoscientific?

not pseudoscientific, because people have made claims about it but scientific observations have not been made

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