Answer:
please mark me brainlist only one mark and new rank please me
 
        
                    
             
        
        
        
 the answer  to your science question is the egg 
 the next answer is the  womb
 and  the last answer is oxygen
        
             
        
        
        
Phospholipids : This makes up the bi-layer which is the membrane's basic structure and has great control over what can enter and exit the cell, due to their hydrophobic tails and hydrophilic heads.
Cholesterol : This also controls entry and exit of substances as it also exhibits hydrophilic heads and hydrophobic tails. It also stabilises the membrane and affects its fluidity (the more there is, the more fluid is the membrane.)
Glycolipids : Those can act as receptor molecules (essential for cell-signalling), antigens and in cell-adhesion
 
        
                    
             
        
        
        
Answer:
it is located on part of the neurons.
Explanation:
Myelin is a fatty substance that wraps around nerve fibers and serves to increase the speed of electrical communication between neurons.
 
        
             
        
        
        
Answer:
The very limited gene pool of wild cheetahs is an example of evolutionary decline
Explanation:
When there is limited gene pool of wild cheetah is an example of evolutionary decline, as there is decrease in number of gene pool of cheetah in the wild which makes it to be scarce