Metamorphic rocks form<span> from </span>heat and pressure<span> changing the original or parent rock into ... Some of the descending rock </span>will<span> melt because of this friction. ... These rocks when </span>exposed<span> to the surface show the unbelievable </span>pressure<span> that ... Silt and clay can </span>become<span> deposited and compressed into the sedimentary rock </span>shale<span>.</span>
        
             
        
        
        
To control the activities of a cell, the control center.
by the tiny holes i don't know what you mean but there is ribosomes and lysosomes.
hoped i helped:P  
        
                    
             
        
        
        
<span>Research in behavioural genetics has shown that identical twins reared apart often have similar personality traits. This result suggests that both genetic inheritance and environmental factors contribute to personality. </span>
<span>Personality traits are under a significant degree of genetic influence, usually influenced by a very large number of genes but environmental influences also play a strong role. The environmental factors tend to make family members more different from one another, not more similar.</span>
 
        
             
        
        
        
Answer:
B. Organisms in each ecological system have evolved in that system and have adaptations suited for that environment.
Explanation:
According to natural selection theory, organisms need to continuously adapt and evolve within an environment or risk being wiped away from that environment.
Organisms that are not able to adapt to an environment are gradually replaced by those that have the capability to adapt and survive in that environment. 
Those that are able to survive go ahead to reproduce and give rise to offspring with inherent ability to survive while those that cannot survive die off. 
The correct option is B.
 
        
                    
             
        
        
        
A farm because you have to water the plants and crops and give animals water