Answer:
The structure labeled X in the diagram is a membrane protein.
Explanation:
Membrane proteins are integral parts of the cell membrane that enable the transfer of ions like sodium, potassium and chlorine and small molecules like glucose through the lipid bilayer. They differ from other types of cell proteins by their structure. As you can see on the diagram, hey form channels that enable specific ions or molecules to pass to the other side of the membrane.
 
        
             
        
        
        
An autosomal trait is a characteristic arising from genes located on chromosomes that are not gender determining. The will make the correct answer D. 
        
                    
             
        
        
        
Probably is because the moonligh is just a reflection of the light that come from to the sun.
        
             
        
        
        
Answer: Option B.
Ventricles are interconnecting spaces that produce and serve as reservoir for cerebrospinal fluid in the brain.
Explanation:
Ventricles are interconnected cavities that is lined by ependymal cells that are around the brain and spinal cord, which produce and transport cerebrospinal fluid around the cranial cavity. The form a structure called choroid plexus which is where the cerebrospinal fluid is produced.