I just took a test in school today. What question was I asked?

Question I was asked: A rainforest area is experiencing a severe drought. As a consequence, the insect population has decreased. What will the insect-eating birds most likely do as a result of the drought?

I just took a test in school today. What question was I asked?

Question I was asked: Which of these is the most common result of greenhouse gases altering the atmosphere of Earth?

I just took a test in school today. What question was I asked?

Question I was asked:
An artificial pacemaker is a device that regulates the beat of the heart by an electrical stimulus. Some early pacemakers were powered by batteries and were worn externally with wires passing through the skin to the surface of the heart. Modern pacemakers are now much smaller and are implanted surgically. Which most likely has increased the lifespan and effectiveness of artificial pacemakers?