Medical Quiz
Psychology Quiz

As sunlight decreases in the fall, the amount of serotonin released _________ and the amount of melatonin ________.

A. randomly fluctuates; decreases

B. randomly fluctuates; increases

C. decreases; increases

D. increases; decreases

Select your answer:
A  B  C  D  E 


Mental Health Nutritional Measurements DNA Replication Year 7 Nutrition Inherited & Acquired Traits Carbohydrates -ology Digestive System Medical Terminology Health Unit Coordinating Vital Signs Food and Nutrition Body Structures and Organ Systems BMS Cell Cycle and Cancer Circulatory System and Nutrition Plasmid

Other quiz: Immune Response

The purpose of introducing weakened microbes into the body of an organism is to stimulate the

A. production of living microbes that will protect the organism from future attacks

B. production of antigens that will prevent infections from occurring

C. immune system to react and prepare the organism to fight future invasions by these microbes

D. replication of genes that direct the synthesis of hormones that regulate the number of microbes