I think the correct answer from the choices listed above is option B. A gene is a tightly coiled strands of DNA. A gene is the basic unit of heredity and is made up of DNA. It acts as instructions to make molecules. Hope this answers the question.
        
             
        
        
        
It would affect the animals that feed off of the tiger shark.  Also, shark meat contains toxic mercury.  Fun Fact: They can smell up to 100 yards and 91 centimeters.  If helpful please give brainlest answer so I can level up.  
Hope this helps 
        
             
        
        
        
The answer to this question would be: 14 days. 
The skin is consist of keratinized cells that will keep multiplying. The cells start at the stratum basale and will keep moving up changing the old ones until it ends up at the outermost layer of stratum corneum.This process will take time around 2 - 4 weeks.
        
                    
             
        
        
        
Cardiorespiratory endurance is the body's ability to carry out strenuous tasks such as exercise while maintaining adequate oxygen supply to the muscle and organ cells. This means that a person with high cardiorespiratory endurance will be able to carry out strenuous tasks more easily, while someone with less endurance is more likely to fail.
More importantly, a high endurance of the cardiovascular and respiratory systems helps prevent heart disease in individuals, which improves a person's overall health.