C. Arachnida.
hope it's correct.
        
                    
             
        
        
        
Answer: solar radiation 
Explanation: Energy released from the Sun is emitted as shortwave light and ultraviolet energy. When it reaches the Earth, some is reflected back to space by clouds, some are absorbed by the atmosphere, and some is absorbed in the Earth's surface Shortwave radiation reflected back to space by clouds. 
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Answer:
The disadvantages of the given instance are mentioned below.
Explanation:
This analysis seems to be a tool device used to evaluate the proportion of the population. 
<u>Disadvantages:</u>
- The effectiveness is dependent on a significant portion of the number of people is being recorded. 
- Animal marks may have a drastic impact on either the animals.
- This approach does indeed have a certain drawback because that's not a very suitable technique.
 
        
             
        
        
        
Answer:
<h2>
Alice's daughter Alix =X X*   </h2><h2>
George V= XY
</h2><h2>
Progeny  are;</h2><h2>
XX, XY, X*X, X*Y
</h2><h2>
50 % males would be  infected
</h2><h2>
50% male normal</h2><h2>
50% female normal,
</h2><h2>
50 female carrier.
</h2>
Explanation:
Hemophilia is an inherited disease and it follows  an X-linked recessive pattern. The genes for hemophilia disease are located on the X chromosome. In males one mutated copy of the chromosome X  is sufficient to cause the condition, because male contain only one gene. Female  contain XX chromosome, so both the chromosome must have mutated for causing this disease.
According to  study of  Queen Victoria (1891-1901) of England, Alice's daughter Alix was X linked carrier and George V was normal male,
so if they got married, their children would be  
parents genotype  X X*   XY
progeny  
XX, XY, X*X, X*Y
50% males would be  infected
50% male normal
50% female normal,
50 female carrier.