Paleontology, the study of fossils, supports evolution because the discovery of old life forms shows how new life evolved.
        
             
        
        
        
In genetics, gene expression is the most fundamental level at which the genotype gives rise to the phenotype, i.e. observable trait. ... Such phenotypes are often expressed by the synthesis of proteins that control the organism's structure and development, or that act as enzymes catalyzing specific metabolic pathways.
        
             
        
        
        
Answer:
I say the correct answer is the 3rd one.
Explanation:
Answer is number 3
  
        
             
        
        
        
<span>The appropriate response is acetyl CoA formation. The fiery electrons are gathered to frame NADH and FADH2. corrosive, which joins to coenzyme A, framing acetyl-CoA. enter the mitochondria and are oxidized to carbon dioxide. Mark the information and yield particles of pyruvate oxidation and Krebs cycle.</span>