What effect does caffeine have on the circulatory system?
A) It causes the heart to pump slowly and thus more efficiently.
B) It enhances the exchange of oxygen and carbon dioxide in capillaries.
C) It reduces blood flow in veins that service the heart.
D) It causes blood vessels in the brain to constrict.
E) It reduces blood flow to the brain.
Correct Answer:
Verified
Q14: There is conclusive evidence that moderate caffeine
Q15: All of the following are pathogens of
Q16: How does caffeine improve athletic performance?
A)It sends
Q17: The insurance underwriting firm,Lloyd's of London,began in
Q18: For what purpose do plants produce alkaloids?
A)to
Q20: Which of the following is the antioxidant
Q21: Which of the following teas is fully
Q22: What event caused the British to become
Q23: For the most superior teas,what part of
Q24: Which of the following is not correct
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents