They are different in structure as one serves in an open system (lymphatic system) while the other serves is closed system (circulatory system).
Hope this helps!
*This question is common, so this answer I use a lot. I copied my own work.*
        
             
        
        
        
Molecule, organelle, cell, tissue, organ, organ system, organism, community, population, ecosystem, biosphere
        
                    
             
        
        
        
Answer:
By finding recombination frequencies for many gene pairs, we can make linkage maps that show the order and relative distances of the genes on the chromosome ..
 
        
             
        
        
        
Answer:
The correct answer is - B. It introduces new alleles into a population.
Explanation:
Gebe flow or migration is the transfer of the genetic material or transfer of genes from one population to another population of the same species. Gene flow is also responsible for the genetic change that leads to evolution.
Gene flow can contribute in various ways such as migration or vertical gene transfer parent to progeny, however, it can lead to evolution directly by introducing new alleles into a population.
 
        
             
        
        
        
Answer:
The function of the pleura is to allow optimal expansion and contraction of the lungs during breathing. The pleural fluid acts as a lubricant, allowing the parietal and visceral pleura to glide over each other friction free. This fluid is produced by the pleural layers themselves.