Answer:
cappillaries
they connect the arteries and the veins
 
        
             
        
        
        
Answer:
C
Explanation:
pyruvate dehydrogenase is the enzyme which catalysis pyruvate to acetyl Co -A. Thus,it  ensures the formation of link reaction/ bridge reaction for linking glycolysis with Citric acid cycle. Therefore, inhibition of this enzyme, prevent link reaction, and there reduction in pyruvate utilization and therefore prevent the  commencements of Citric acid cycle, with consequent  reduction in glucose oxidation. as there is no  reaction of acetyl Co A (from link reaction from pyruvate )   with 4C oxaloacatate in the kreb Cycle to form Citrate in Kreb's cycle. Thus the heart  depends on fatty acid supply for energy.
 
        
             
        
        
        
Only animals in the same <u>species</u> can always breed and have fertile offspring.
Although animals in the same genus<em> can </em>breed, their offspring are usually infertile.
 
        
             
        
        
        
Answer:
Sensing danger and sweating