Answer:
3) Kingdom 
Explanation:
Kingdom, Phylum, Class, Order, Family, Genus, and Species are the taxa of the taxonomic classification. As per taxonomic groups are given in the question, Kingdom is the most inclusive of the all taxonomic groups and species is the least inclusive. Thus, organisms from the same phylum all belong to the same taxon, the Kingdom.    
 
        
             
        
        
        
Answer:
1. Obtain two identical containers and dry sand.
2. Shape equal amounts of sand into a  "slope on the side of"  each container.
3. Spray water on the sand in one container. The sprayed water represents "rainfall"
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4. In the other container,  "place ice cubes to melt on the sand. This represents snow or glaciers."
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5. Observe and record the changes in the sand.
6. Analyze differences between the two containers.
Explanation:
Mine hasn't been graded yet but I'm pretty sure this is the right answer. I'll come back once it's graded and say.
 
        
             
        
        
        
<h2><u>Answer</u> :</h2>
The correct option is A. If a dominant allele is present, the recessive allele won’t be seen.
The dominant allele is the one which appear, and the recessive one isn't shown.
For example - If a person has 2 alleles of eye colour as B ( black ) and b ( brown ), in which black is dominant and the brown one is recessive, then the person will have black eye colour because only dominant allele shows its characteristics.
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I believe that the disadvantages outway the advantages. Afterall we want to stay healthy and live longer.