Allowing students with A averages exemptions from taking a final exam is an example of _____ reinforcement

The textbook offers all of the following explanations for obesity EXCEPT

a. failure to change eating habits with age. b. efficient metabolism. c. becoming less active with age. d. deficient leptin receptors in the brain. e. evolved differences in the need for nutrients.

Saadat is walking to the front of the classroom in preparation for his class presentation. He notices his heart starting to beat fast, his palms are sweaty, and has a general sense of increase in energy

According to the general adaptation syndrome, which phase of the stress response is he in? a. alarm phase b. adaptation phase c. reactive phase d. muscle preparation phase e. eustressful phase