The increase in size of the heart enables the left ventricle to stretch more and thus fill with more blood. The increase in muscle wall thickness also increases the contractility resulting in increased stroke volume at rest and during exercise, increasing blood supply to the body.
        
             
        
        
        
The force of Gravity pulls the ball down towards the earth. BRAINLIEST PLZ.
 
        
                    
             
        
        
        
CANAL  Las proteínas canal y muchas proteínas "carrier" sólo pueden trasladar sustancias a través de la membrana en forma pasiva. Este pasaje mediado por proteínas se conoce como difusión facilitada. La glucosa, por ejemplo, es una molécula hidrofílica que entra en la mayoría de las células por difusión facilitada.
        
             
        
        
        
I'm assuming you mean non-vascular plants, since that is the case.. the answer is rhizoids.
Non-vascular plants have rhizoids that anchor them to the ground AND absorb water and minerals.
        
             
        
        
        
Answer:
These strands are clones, however, due to their low genetic variability, the population becomes susceptible to diseases taking place in plants. Pando comprises grove of about 47000 trunks, these all are genetically similar that develops from a solitary underground species, Quaking aspen tree. Pando is an extremely large clone.  
However, for the past some years, scientists are worried about Pando's health. For the past thousands of years, Pando was living in fine tune with the native wildlife population, but for the past some years, a shift in balance is noticed. As in the absence of the development of novel stems, nothing will be able to substitute the natural withering of the older ones, if this goes on, the death of Pando will take place.