After Burt forced a smile on his face for thirty minutes, he actually started to feel the emotion of happiness. What theory of emotion was Burt displaying?

Demonstrate how to keep the workplace neat and in order?

Each autumn the forest floor is covered by leaves that have fallen from trees which type of organisms is most effective in decomposing the leaf tissue allowing the nutrients and minerals to be recycled in the environment?

Usha is giving a presentation on the cardiovascular system. one of her slides shows a diagram of the blood moving from the heart to the arms and legs. which type of circulation is the slide illustrating? systemic circulation pulmonary circulation systolic circulation diastolic circulation