She is the carrier( the queen)
        
             
        
        
        
The choices are:
A. folic acid    
B. mercury
C. vitamin D
<span>D. vitamin C
The answer is A. folic acid
Source:</span>https://www.health.ny.gov/publications/1335/
Based on a study, folic acid can prevent brain damages and spinal problems 70%. Giving sufficient folic acid during the first month of pregnancy can help five better health condition and prevent birt defects. There are plenty of foods containing folic acid, mainly coming from cereals, grains, and vegetables.
        
             
        
        
        
The element starts off as 100%. half of 100% is 50% and half of 50% is 25%. the element has emitted 2 times the half life which is 10,000 x 2 = 20,000
the fossil bone is 20,000 years old
        
             
        
        
        
Question below!
Based on the image below, what is the most abundant element found in Earth's crust?
Answer:
<u><em>Hi, There! Frozen Is Here to help!</em></u>
<u><em>The Correct Answer is Magnesium</em></u>
Hope this helps!
Have a great day!

 
        
             
        
        
        
Mutations and natural selection cause adaptations. Mutations can cause instant adaptations, while natural selection is the process by which adaptations occurs over a series of generations.  
Adaptations are changes or processes of changes by which an organism or species becomes better suited for its environment.  
A mutation is an alteration of the DNA sequence. Sometimes such alterations code for the same amino acid sequence as the unaltered DNA strand during protein synthesis. In such a circumstance, the mutation is not detectable. However, other mutations alter the genetic code in such a way that a noticeable change in the trait that is associated with that gene is visible. Sometimes such mutations are advantageous and improve the organism's ability to survive in its environment.  
Natural selection is the process by which organisms with more advantageous traits (being camouflaged, being covered with the correct outer covering for the temperatures of that environment, stronger/ larger/ or faster to fight off or run from predators, etc.) are more likely to survive in a particular environment. Likewise, organisms less advantageous traits are more likely to die due to the pressures exerted by the environment (such as temperature, predators, illness, etc.). Therefore, the organisms with the advantageous traits that survive are more likely to survive to find a mate and reproduce. Thus, the advantageous traits are passed down to future generations. 
<u><em>Hope this helps because I was learning about this today! </em></u>
<u><em></em></u>
<u><em>Soruces that might help: </em></u>
brainly.com/question/6836560