Problem: Write a question you would see in a school textbook.

Answer: The hormone insulin is secreted by the pancreas. Which activity is most likely to trigger an increase in the levels of insulin circulating in the blood?

Problem: Write a question you would see in a school textbook.

Answer: The wheels and gears of a machine are greased in order to decrease

Problem: Write a question you would see in a school textbook.

Answer:
Certain flowers will open for twelve hours and then close. Which stimulus do the flowers respond to when they open and then when they close for that time period?