<span>Although they are both striated muscles, that is the biggest thing they have in common. The skeletal muscle is controlled by the somatic nervous system, while the cardiac muscle is not. In fact, it is involuntary, therefore without a control center. Another difference is where they are located in the body.</span>
        
             
        
        
        
An organ is a group of two or more tissues working together to perform a function. Hence, the organ can be correctly matched with 3.  
The tissue is a group of specialized cells working together to perform a specific function. Hence, tissue can be correctly matched with 5.  
An organ system is a group of organs working together to perform a function. Hence, organ system can be correctly matched with 2.  
An organism refers to a group of organ systems working together to exhibit the six characteristics of life. Hence, the organism can be correctly matched with 1.  
A cell is the smallest fundamental unit of life. Hence, the cell can be correctly matched with 4.  
 
        
             
        
        
        
A smooth, egg-shaped hill left behind by a glacier is called a drumlin.
<span>Drumlins are </span>approximately 250 to 2000 meters long and 300 to 600 meters wide. D<span>rumlin is glacial landform composed primarily of glacial </span>till (unsorted glacial sediment), so <span>internal composition of a drumlin is stratified sand, unstratified till or bedrock.</span>
        
             
        
        
        
An example of this is to whether smoke cigarette or not. People smoke whenever they feel anxious with their activities but they were thinking that it is not a habit, but in the end, they will be used to it that is why they tend to forget how to live without smoking. This is the reason why they got addicted and to some serious problems with their health.
        
             
        
        
        
11 and 12 seem to be right :) For 13, only organisms which are homozygotic for a certain gene (aa) express a recessive phenotype.
14. This dna exchange between the homologous chromosomes is called crossing-over.   
15. geneticly linked or coupled, the phenomenon is known as genetic linkage
16. and 17. also seem all right :)