Hello!
The primary advantage of multiple researchers obtaining the same result is the conclusion is likely to be more credible when they are independently verified. As the work done by them gives the same result, it can be easier to believe.
The prefix "cardio" refers to D. heart
The answer is “The Nervous System”
The vas deferens <span>transports sperm from the epididymis to the ejaculatory ducts. Hope this helps!</span>