<span>The correct answer is Platelet. Platelets are actually thrombocytes which are found in blood and are responsible for clotting the blood in case of an injury. They are recognizable easily for not having nuclei. T-cells, B-Cells and Phagocytes are all types of white blood cells because the differences between them are minor.</span>
        
                    
             
        
        
        
One thing you could do in order to measure your cardiovascular strength, you can do a full sprint. In order to improve this you can swim, jog, run, body weight exercised, and a balance diet. 
        
             
        
        
        
Answer: Endorphins 
Explanation: Endorphins are chemicals secreted by the brain also known as neurotransmitters that send electrical signals inside the nervous systems. 
The factors that initiate the secretion of endorphins are stress and pain. 
When endorphins are secreted they reduce feelings of pains, and in runners that cause a phenomenon called " Runners high" which allows runners to keep running without feeling pain or stress. 
 
        
             
        
        
        
Answer:
B. Ashchronous recruitment 
Explanation:
Asynchronous muscles are muscles that Don't have one-to-one relationship between electrical stimulation and mechanical contraction. Such muscles can be found in About 75% of flying insects and they have convergently evolved 7-10 times. 
The synchronous muscles which is their counterparts contracts once per neural signal, but mechanical oscillations trigger force production in asynchronous muscles.
 Hence the rate of mechanical contraction is an order of magnitude greater than electrical signals.
Although they achieve greater force output and higher efficiency at high frequencies, they have limited applications because of their dependence on mechanical strength.
The nervous system recruits the Ashchronous muscle to avoid muscle fatigue during submaximal contraction.
 
        
             
        
        
        
Since she is there already, will try to accomodate her but make no promises. Just tell her “Lets see if there are some cancellations today”
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