The species of bird with the greatest variation in traits
        
             
        
        
        
Answer:
the central nervous system and the peripheral nervous system
Explanation:
The nervous system has two main parts:
The central nervous system is made up of the brain and spinal cord.
The peripheral nervous system is made up of nerves that branch off from the spinal cord and extend to all parts of the body.
 
        
             
        
        
        
Answer:
The Endangered Species Act was formulated in 1973. This Act was made in order to protect the threatened and endangered species of both plants and animals and also to protect the habitats in which these species live. 
One of the major success was that there were many species which actually recovered from this act. For example, the population of the Kirtland's warbler increased from 210 to 1415 from 1973 to 2005.
One of the major controversies which arose from this act was that the critics claimed that this act failed to show major recovery of animals. Out of the total 2000 endangered species listed, only 28 species were properly recovered. 
 
        
             
        
        
        
The correct option is this: A STRONG WIND BLOW ACROSS A MIDWESTERN PRAIRIE. 
A strong wind is an example of a natural force. The prairie refers to a land fill with grasses and that is a natural factor also. Thus, a strong wind that is blowing across a prairie is generating a natural form of energy. The energy flow in the other options given are examples of man made devices. 
 
        
                    
             
        
        
        
Your answer for this question would be false.
Hope I could help. x