<span>Trained athletes tend to have "low" heart rates and "high" stroke volumes than non athletes at rest..
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Athlete's hearts are in reality more productive or efficient and along these lines don't need to function as hard as a non-athlete. An athlete has a bigger stroke volume which implies that they don't need to pump as frequently to accomplish the required cardiovascular yield. Aerobic training brings down the heart rate and expands stroke volume without changing cardiovascular yield at rest or for a given exercise power speaking to an economization of heart function.
Answer:
A. The words "good dog"
Explanation:
In this case, we know that the primary reinforcer is the treat. The dog is gaining an immediate reward for doing what you wanted it to do. But even after it, you also praise the dog. This praise is the secondary reinforcement. The secondary reinforcement will allow the trainer to deliver reinforcement even if the dog is not hungry, which might cause problems if you only use the primary reinforcement.
The correct answer to this open question is the following.
As there are no options attached to this question, we can assume that the Black Codes and Jim Crow laws were born as a result of both slavery and racist policies to restrict the rights of black Americans after the Civil War.
After the Civil War and as part of the Reconstruction, radical Republicans approved the passing of the 15th Amendment to the United States Constitution that granted political and civil rights to African Americans. But the southern states did agree at all with that decision and established the Black Codes to limit the rights of black people. Later, the Jim Crow laws were a series of legislations that authorized racial segregation in southern states. This produced many confrontations between blacks and whites.
They keep their position for life. They do not have to be elected. Please mark Brainliest!!!
