Answer:
The correct answer is (a). The brown beetle migrated to island #1 and gave rise to the colored species on island #2 through adaptive radiation.
Explanation:
As there are no brown beetles on the island 1, and island 2 has less biodiversity of plants, it's possible to think that the brown beetle migrated to island 1 where there are many kinds of different plants, which would lead to the adaptation of these organisms resulting in many different species. 
 
        
             
        
        
        
A dichotomous key is a tool that helps the user to determine the identity of items in the natural world, such as trees, wildflowers, mammals, reptiles, rocks, and fish. 
        
             
        
        
        
The correct answer is True
Explanation:
In geography, the term "landform" refers to a natural shape or form that can be found on the surface of Earth such as mountains, hills or canyons. All of these are formed through different processes such as movement in tectonic plates. Additionally, these are considered as a physical feature of Earth as landforms define the shape and features of the Earth's surface and also influenced other physical phenomena such as weather or wind patterns. According to this, it is true landforms is a physical feature on Earth's surface.
 
        
                    
             
        
        
        
Answer:
Recombinant DNA
Explanation:
Recombinant DNA introduces foreign or new DNA into an organism that may cause a change.
 
        
             
        
        
        
Well, Nitrogen is an important part of our bodies, Amino adcids all contain nitrogen there like building blocks that make protiens in your hair, muscles, and other tissues, Nitrogen is also and important part of your DNA.
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