Answer:
The atria and ventricles are separated by the mitral and bicuspid valves.
Explanation:
The atria undergo atrial systole, a brief contraction of the atria that ejects blood from the atria through the valves and into the ventricles.
Answer:
Correlation does not prove causation.
Explanation:
Correlational studies are the type of research that seeks to explore relationships that may exist between variables except cause-effect relationships, so correlational studies are not the most appropriate to prove casualties. The study of relationships between variables in this type of study is descriptive because there is no manipulation of variables, and prediction is the most frequently established type of relationship.
Studies to prove that television programs with aggressive content influence aggressive behavior in children are from correlational studies, as shown in the question above. The problem is that in order to correctly assess the relationship between tv shows and unfaithful behaviors, a cause and effect assessment should be made, since correlation does not prove causation.
<span>The answer is D. 31%. According to the National Highway Traffic Safety Administration of the US Department of Transportation, in 2012 31% of the total traffic fatalities in the USA were killed in alcohol-impaired driving crashes. Comparing to the previous year, alcohol-impaired driving crashes were increased by almost 5% in 2012, when more than 10,000 people were killed in this type of traffic fatalities.</span>
Answer:
Describe the factors that influence the level of cardiorespiratory fitness a person is able to achieve?
Explanation:
The factors that influence cardiorespiratory fitness are age, gender, genetics, body composition, and a person's level of conditioning. Aerobic exercise forces the body to provide extra oxygen to the muscles.
