Get the answers you need at Westonci.ca, where our expert community is always ready to help with accurate information. Explore thousands of questions and answers from a knowledgeable community of experts ready to help you find solutions. Connect with a community of professionals ready to provide precise solutions to your questions quickly and accurately.

Which of the following effects is caused by caffeine?

a. Doses as low as 50 mg will increase heart rate
b. Caffeine constricts bronchi
c. Caffeine relaxes skeletal muscles.
d. Caffeine constricts cerebral blood vessels, which decreases blood flow to the brain.