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Answer:</h2>
The fossil is <u>A) </u><u>Index fossil</u>.
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Explanation:</h2>
Index fossils refer to the type of fossil which is used to characterize and distinguish geologic periods. Due to this function of index fossil, they are also called as guide fossil or indicator fossil.  These fossils must have a short vertical range, wide geographic circulation, and quick developmental patterns.
Another term, Zone fossil is utilized when the fossil have every one of the characters expressed above with the exception of wide topographical dispersion, they are restricted to a zone and can't be utilized for relationships of stratas.
 
        
        
        
CAPACITY..
Limiting factors determine carrying capacity. The availability of abiotic factors (such as water, oxygen, and space) and biotic factors (such as food) dictates how many organisms can live in an ecosystem. Carrying capacity is also impacted by the availability of decomposers.
BIODIVERSITY...
While food and water supply, habitat space, and competition with other species are some of the limiting factors affecting the carrying capacity of a given environment, in human populations, other variables such as sanitation, diseases, and medical care are also at play.
 
        
             
        
        
        
B. Geothermal is the answer you are looking for
        
                    
             
        
        
        
I would say maybe Connective tissue or Muscle tissue.
Hope this helped.  Please chose as best!