The correct answer among the choices provided is option A. Lung capillaries are responsible for exchanging carbon dioxide for oxygen from the air. Blood that comes from the heart gets oxygen from the alveoli. The carbon dioxide in the blood goes into the alveoli at the same time.
        
                    
             
        
        
        
Answer:
Darwin observed marine fossils in the mountains and the uplift of land by an earthquake which supports Lyell's theory. 
Explanation:
- Lyell's theory  of an ancient Earth states "the formation of Earth's crust took place through countless small changes occurring over vast periods of time".
- So Darwin had an observation of marine fossils that uplifted the land through many years by earthquake. Which was the same thing Lyell's explained.
- According to known natural laws, It takes lots of time to form the earth's crust.
 
        
             
        
        
        
the three functions of mitosis are Asexual Reproduction, growth, and tissue repair.
 
        
             
        
        
        
DNA markers between a suspect and a crime scene specimen are compared, including <span>DNA
minisatellites, short tandem repeats (STRs) and single nucleotide polymorphisms
(SNPs). The total markers that can be compared can number in the thousands, and therefore the chances of DNA fingerprinting identifying the incorrect suspect are negligible. </span>  
        
             
        
        
        
Phospholipids is the fundamental building block of a new cell membrane