The importance of the semi-conservative model is unhealthy old and new genes cancel each other. The result new cells are disease and mutation free. ... DNA replication is semiconservative because DNA is composed of two complementary strands, each of which acts as template to construct a new strand complementary to itself.
        
             
        
        
        
Viruses depend on the host cells that they infect to reproduce. When found outside of host cells, viruses exist as a protein coat etc.
true.
 
        
             
        
        
        
As food becomes scarce, monkeys within the same tribe can fight for food resources. This behaviour describes intraspecific competition.
<h3>What is intraspecific interactions?</h3>
Intraspecific competition is a competition between someone from the same species . Theimpact of competition on each individual within the species relies on the type of competition that takes place.
 'The competition' may be inactive or active and may result in ovarious outcomes.
Thus, This behaviour describes intraspecific competition.
To learn more about intraspecific competition click here:
brainly.com/question/17003911
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Answer:
The correct answer is "For different reasons, including: pathogens developed resistance, people traveling much more frequently and practices of terrorism". 
Explanation:
Emerging diseases are infectious diseases that are new to a region, or that remerge from a place that were believed to be eradicated. For different reasons emerging diseases are appearing in industrialized countries. One is that pathogens may have developed resistance to the treatments, as they may evolved naturally or it was driven by overuse of antibiotics. Other is that people are traveling much more frequently than in the past, which helps pathogens from distance places to reach industrialized areas. Also, terrorism practices is a cause of introducing pathogens deliberately to a new place.