In this task, you are given a question and answer for that. The answer will fill in the blank or will complete the unfinished question. Your task is to provide an explanation based on the given question or fill-in-the-blank statement, and answer.
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Question: Question: Don notices that the patient's heart is expelling less blood with each stroke. The patient's heart has to beat _____ often to maintain consistent blood flow. 
 Answer: more

Answer: When the heart expels more blood with each stroke, the heart has to beat less often in order to maintain the same volume of blood flow.


Question: Question: When there is more fluid in a tube the pressure in the tube 
 Answer: increases

Answer: If blood volume in the body decreases, blood pressure decreases.


Question: Question: If a stream begins moving faster, what will happen to the size of the particles it carries? 
 Answer: get bigger

Answer:
In erosion, a slower moving stream will only carry smaller particles.