An individual who has a high level of cardiovascular fitness will have a LOWER Resting Heart Rate at any activity level than an individual who is unfit AND an individual who has a high level of cardiovascular fitness will have a LOWER Stroke Volume than an individual who is unfit is a <u>true</u> statement.
Explanation:
Resting heart rate is a cardiac marker and at normal conditions, the resting heart rate of an adult ranges anywhere between 60 to 100 beats per minute.
As far as efficiency of heart or cardiovascular fitness is concerned, a lower resting heart rate is the general benchmark. An athlete who exercises properly may have a resting heart rate even less than 60 which is good for heart health.
Exercise strengthens the heart or cardiac muscles which provide more energy for the cardiac muscles to pump more blood per one heart beat as one exercises. So without increasing the heart rate, more blood is pumped and increases stroke volume.
This is the reason why the stroke volume is also increased in a person with high level of cardiovascular fitness.
Aerobic exercises are the best to lower resting heart rate.
Whereas cardiac muscles become weak due to lack of exercise, which requires the heart to beat more times to pump blood per minute. Lack of exercise, anxiety, stress, dehydration, lack of adequate sleep, and any other underlying medical conditions can increase the resting heart rate.
<span>The development of a new experimental method is most likely to change a theory if it makes it possible to approach the project from a different angle, especially if it allows more people to experiment on a regular basis.
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The answer to this is genetic diversity. Genetic Diversity is the total number of genetic makeup of a species. It distinguished from genetic variability, which describes the tendency of genetic characteristics to vary. <span />
The answer is the second one. Because they all make sense
The DNA, RNA or the RNA Polymerase of the infected cell would not be virus's primary source of heritable information because it has the ability to integrate into host cell and get itself replicated, also it causes infection so multiplication becomes necessary.
Explanation:
The virus has reverse transcriptase enzyme in them which works slightly different. It transcribes RNA into DNA and eventually gets integrated into the genome of the host. It is here the DNA in the host cell is transcribed and translated. Thus it is modelled to have RNA as genetic material.
When virus infects the living cell by a process called a lytic infection, it injects its genetic material into it to get replicated and increase its number and eventually bursts the infected cell. Since a virus causes infection, it has to increase in number so it uses its own genome to get replicated.