Adenine, guanine, thymine, cytosine. Thymine matches with adenine and cytosine matches with guanine
        
             
        
        
        
C i think ................................................
        
             
        
        
        
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Darwin's theory of biological evolution tells us that all life on earth may have originated from a single, relatively simple reproducing creature living in the distant past. This idea is based on many observations, one of which is that when living things reproduce, children are often born with random new traits.
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Answer:
The texture of an igneous rock is dependent on the rate of cooling of the melt: slow cooling allows large crystals to form, fast cooling yields small crystals.In addition to texture, igneous rocks may are classified according to their chemical composition.
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All viruses have a capsid or head region that contains its genetic material. The capsid is made of proteins and glycoproteins.