The answer to your question A link between green algae and land plants has been clear to biologists for. The remainder of Chlorophyta constitutes a monophyletic group. This major bifurcation in green plant evolution implies a single common ancestor to the two lineages, but,  of green algal phylogeny, which is reflected in modern classification.<span>
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B. CO2 levels in the atmosphere could increase and contribute to global warming problems.
 
        
                    
             
        
        
        
Answer:
if crossing over does not occur, the products are parental gametes. If crossing over occurs, the products are recombinant gametes. Meaning they are mixed. 
Explanation:
If crossing over doesn't occurs then you wouldn't really mix the 2 parental alleles so you couldn't have a genotype without mixing. 
Sorry if im wrong!
 
        
             
        
        
        
Answer:
When many molecules of a simple compound join together, the product is termed a polymer and the process polymerization. The simple compounds whose molecules join together to form the polymers are called monomers. The polymer is a chain of atoms, providing a backbone, to which atoms or groups of atoms are joined.
 
        
             
        
        
        
Answer:
sexually transmitted disease
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