transgenic organism has a specific desirable gene transplanted to another organism. so the first step is to identify the desirable gene. ans is D. Find a gene in one species that would be useful if added to the DNA of another species.
 
        
                    
             
        
        
        
Cholesterol is one of the molecules composing the cell membrane. b) makes the cell membrane fluid at room temperature.  
<h3>What is the role of cholesterol in the cell membrane?</h3>
The cell membrane is composed of two lipidic bilayers, cholesterol, proteins, and glucans incrusted in between.
 
Cholesterol is one type of lipid. 
These molecules are incrusted in the membrane between the hydrophobic tails of lipids.
Their proportion on both sides of the membrane is almost the same. 
 
Cholesterol is a significant molecule that contributes to the membrane fluidity, separates phospholipids,  and interact with membrane proteins regulating in their activity.
The correct option is b). makes the cell membrane fluid at room temperature.
You can learn more about cholesterol at
brainly.com/question/2114495
brainly.com/question/4551833
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Your answer is Enamel it is the coating on teeth that helps prevent damage.
        
                    
             
        
        
        
<span>The population dynamics of the Warbler species differ from what's documented by Scott Sillett and colleagues one migration issues. 
The Warbler species are non migratory species, while Scott Sillet and colleagues have been studying migratory species. The Warbler species were even taken to other islands, in some cases, in order to give them the </span>security of additional breeding populations, this because their population dynamics is not a migratory one. The studied species by Scott Sillet and colleagues, on the other hand, have migratory population dynamics: they pass their Summer time in <span>New Hampshire and and their Winter time in Jamaica.</span>
        
             
        
        
        
B. mitochondria and nucleus