Answer:
the food chain
Explanation:
every species in the ecosystem eats or gets eaten
 
        
                    
             
        
        
        
Lunar maria (plural form of the Latin word mare, which means sea) are dark surfaces that can be found all over the moon (17% of the Moon is covered in them) that have been created as a result of volcanic eruptions. These areas are made up of basalt, and given that they seemed almost waterlike, the astronomers in the distant past mistook them for seas, whence their name comes.
When it comes to craters, their origin is quite similar - volcanic eruptions created them. When lava starts erupting from a volcano, it has to get out from somewhere - and thus craters are created. If you are referring to lunar craters, however, there are many speculations as to how they were created: due to volcanic eruptions, meteoric impact, or glacier activity. 
        
             
        
        
        
Tissues working together references the pulling and relaxing of tissues which make up the
Muscles
 
        
                    
             
        
        
        
Answer;
Mendel's work was not well known until many years after Darwin published his theory of evolution
Explanation;
-Mendel's work was ignored because it was not widely distributed, and he didn't make an effort to promote himself. In actual fact, the reasons are more complex.
-Gregor Mendel had the answer to Darwin's problem. Traits were not blended, but inherited whole. And according to Mendel's laws of inheritance, a trait that might disappear in one generation might reappear in the following generation. Modern Neo-Darwinism combines both Darwin's and Mendel's work.
 
        
             
        
        
        
D. Protein.
Widely distributed in many foods, phosphorous is especially abundant in foods high in protein.
Phosphorus is found in many foods and is found in high amounts in foods that contain protein. Phosphorus is found in smaller amounts in vegetables and fruit. Phosphorus is the second most abundant mineral in the body, second to calcium. 
The main function of phosphorus is in the formation of bones and teeth. It plays an important role in how the body uses carbohydrates and fats. It is also needed for the body to make protein for the growth, maintenance, and repair of cells and tissues.
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