The answer is mitochondria
        
             
        
        
        
Answer:
The correct answer is - tight junctions.
Explanation:
Tight junctions are one of the cell-cell junctions that make a barrier to the passage of material which is a present in epithelia. This barrier is impermeable to most of the materials with soluble molecules. This barrier is made up of the occludin and claudin proteins.
Tight epithelia have tight junctions and examples of such junctions are the distal convoluted tubule or DCT, and the collecting duct of the nephron in the kidney.
Thus, the correct answer is - tight junctions.
 
        
             
        
        
        
Answer:
1.  The grasses that are diseased. 
Explanation:
1. In the event that the grasses were diseased, the environment will recoup itself from this sort of disturbance.
 
        
             
        
        
        
Answer:
... does this help ?....
Explanation:
The body's hormones, and the glands that produce them, make up the endocrine system. There are eight major glands, and their job is to regulate the body's metabolism, reproduction, growth and sleep. Like the nervous system, the endocrine system is an information signal system.