A biological theory, like the theory of evolution, that is widely accepted and supported by so many observations and experiments may be referred to as a principle or a law.
<h3>What is a Law?</h3>
This refers to statements which describes or predict a range of natural phenomena as a result of repeated experiments which has been performed and the authenticity has been prove by peers and other individuals.
A law is also referred to as principle and has been observed to be always true unlike due to the repeated scientific methods being done approving of its validity thereby making law the correct choice.
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Angiosperms have a vascular system and can live is harsher environments which means they can reproduce a lot more often and faster. 
        
                    
             
        
        
        
<span>In a hydrolysis reaction, water (H2O) is added to a bond and cleaves the bond holding molecules together, breaking polymers into 2 pieces. In total, you take a water molecule and split it among the two parts, H+ and OH-. These ions get added to either side with the higher affinity for the cation (H+) and anion (OH-). </span>
        
                    
             
        
        
        
I don't know answer, but my answer is the leaf segments, whole communities, and plant dominated aquatic ecosystems and present contemporary methods tailor made to quaintly photosynthesis and carbon fixation underwater.