Respuesta :
Answer:
a is the answer i just took the exam
Explanation:
The cardiovascular system is the organ system that includes the vessels and heart. It can get stronger and more efficient as the intensity of the workout increases. Thus, option A is correct.
What is the cardiovascular system?
The cardiovascular system is the spread of the organ system including the heart and its vessels across the body for the transportation and circulation of blood carrying nutrients, oxygen, wastes, etc. The workout increases the removal of waste and makes the system more efficient.
The cardiovascular system can be made more stronger and efficient by intense workouts as they increase strength and endurance. This improves oxygen circulation and reduces the risk of the heart diseases like strokes, blockage, blood pressure, etc.
Therefore, option A. stronger and more efficient can replace the word "better."
Learn more about the cardiovascular system here:
https://brainly.com/question/946975
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Your question is incomplete, but most probably your full question was, Your cardiovascular system gets better when you increase the time and intensity of your workouts. What should the word in italics be replaced with to make this sentence more precise?
- Stronger and more efficient
- Weaker and more intense
- Faster and more important
- Healthier and more frequent
