A researcher studies a group of elderly people and finds that, as a group, the better their memory performance, the lower their anxiety level. What can be said about this research?

The characteristic of stress responses that refers to the degree or extent of the behavior is a. intensity. b. frequency. c. duration. d. stress.

Mucous membranes.. a. cover or line external surface of body. b. line internal body surfaces that are in contact with the environment. c. produce antibodies to combat infection. d. secrete sweat, which has antibacterial enzymes.

Does the weight loss program have practical significance? a. no, the program is not practically significant because the results are likely to occur even if the weight loss program has no effect. b. yes, the program is practically significant because the results are too unlikely to occur by chance. c. yes, the program is practically significant because the amount of lost weight is large enough to be considered practically significant. d. no, the program is not practically significant because the amount of weight lost is trivial.