Zooflagellate is a free living protozoan with a whip like appendage. It is non-photosynthetic and feed on decaying organic matter. Euglena is a single cell flagellate eurkaryote, which has features of both plant and animal. Two organelles that are present in euglena but which are not present in zooflagellate are chloroplast and photoreceptors.
        
             
        
        
        
The correct sequence is; Glycolysis-pyruvate-acetyl CoA-krebs cycle-electron transport chain. 
Glycolysis is a sequence of reactions for the breakdown of glucose to two molecules of pyruvic acid under aerobic conditions, Krebs cycle is a series of chemical reactions used by all aerobic organisms to release stored energy through the oxidation of acetyl-CoA derived from carbohydrates, fats, and proteins into carbon dioxide and chemical energy in the energy carriers, while electron transport chain involves a series of complexes that transfer electrons from electron donors to electron acceptors via redox reactions and couples this transfer with the transfer of protons across a membrane. 
 
        
             
        
        
        
1 the atmosphere because gas is everywhere. 
        
                    
             
        
        
        
The thickness of the uterine lining becomes very thick when the level of the hormone progesterone reaches its highest levels. this makes sense based on the function of progesterone, as it is necessary for the implantation of the zygote.
        
             
        
        
        
From the video we can infer that a group of friends went on an excursion to a zoo and saw the treatment of different animals present.
<h3>What is a Zoo?</h3>
This is a place where animals are kept for public display or for conservation purposes.
The debate between them was about the revolutionary concept of how animal treatment affects their choice selection in the zoo.
The element as to how zoos are changing that also serve the purpose of offering animals more choice include their habitat and diet.
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