Epithelial tissue is the type of tissue that lines the body cavities.
        
             
        
        
        
Answer:
DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA's instructions, or genetic code.
Explanation:
 
        
             
        
        
        
Have very few or no predators in the new ecosystem.
        
                    
             
        
        
        
Scientists most often produce new genetic variations of organisms by causing mutations with radiation or chemicals and then selectively breeding in order to emphasize the desired traits in the new variations. The Dachshund is an example of this. By breeding two dogs with a similar mutation that caused student legs and elongated backs breeders were able to create a new variation not found in nature. 
        
                    
             
        
        
        
Distance divided by time is <u>speed</u><u>.</u>
Explanation:
The distance you travel in a certain amount of time would be your speed.