Phagocytes are cells that protect the body by ingesting harmful foreign particles, bacteria, and dead or dying cells. 
 
        
             
        
        
        
Answer:
C. Mitochondria
Explanation:
Viruses lack a mitochondria.
 
        
                    
             
        
        
        
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Answer:
Speciation was allopatric or peripatric, but would depend on the number of individuals that dispersed from the original populations.
Explanation:
- There are two types of speciation: allopatric and peripatric.
- Allopatric speciation occurs when the species of same population gets isolated that results in lack of gene flow.
- From the isolated population, new species are formed then it is known as the peripatric speciation.
- All these isolation of populations and formation of new species depends upon the initial or original group of species that was dispersed. 
 
        
             
        
        
        
<span>During photosynthesis, plants use carbon dioxide and produce oxygen. During metabolism oxygen is used and carbon dioxide is a product. Humans impact the carbon cycle during the combustion of any type of fossil fuel, which may include oil, coal, or natural gas.</span>