Unify means to make or become united uniform, or whole.
(I personally don't agree that evolution is true; but here is my answer)
Evolution is a way Scientists like to theorize the world was made/ created. They try to explain why everything can about in a uniform way. Everything has a reason or theory. Even though scientists haven't been able to prove that Evolution actually exists, many people like the idea of it- just for the reason that it gives a more believable whole approach to how the Earth and Universe came about. For some people, it is more uniform than a religion. 
I hope this helped you! 
        
             
        
        
        
According to the question, the width of a pin is 0.001m and the width of a red blood cell is 6-8 μm. 
Width of pin in μm = 1000μm.
So approximately 1000/8 red blood cells can fit which is equal to 125 RBCs.
Answer: 125 RBCs 
        
             
        
        
        
Answer:
DE.......................................
 
        
             
        
        
        
Answer:
Parathyroid hormone increases the level of calcium while calcitonin hormone  decreases the level of calcium in the blood.
Explanation:
Parathyroid hormone is a type of harmone which is responsible for balancing calcium in our body. When the calcium level lowers in our body, parathyroid hormone is secreted and calcium is absorbed from the bones and fullfilled the requirement of the body. If the tumor secreted calcitonin hormone instead of parathyroid hormone, the calcium level in the blood is lowered because it acts to the opposite of parathyroid hormone.
 
        
             
        
        
        
Answer:
<h2>Gold</h2>
Explanation:
Assume Gold trait =P ,
Purple= p,
Given:
Gold (P) is dominant over purple(p), so P is dominant over p.
If the bear is homozygous pp ( recessive)  then bear will look purple,
If the bear is heterozygous Pp, then bear will look gold,
If the bear is homozygous DD( dominant), then the bear will look GOLD,