These lines (there is four of them) are residuals of the fusion of the five sacrum vertebrae that are fused. These "vertebrae" or segments present a characteristics, being the first of them very similar to a lumbar vertebra, large, and the other vertebrae are<span> progressively smaller and flattened. They also present a curved shape being anteriorly concave.</span>
        
             
        
        
        
 The correct answer is: E) provide the defense for the CNS
Astrocytes are star-shaped cells found in central nervous system (brain and spinal cord) .Some of their functions include:
•	Support of neurons by supporting endothelilal cell of blood–brain barrier,
•	Provide nutrients to neurons
•	Maintain ion balance and thus controlchemical environment around neurons
•	Repair of injuries in the brain
•	the secretion or absorption of neural transmitters…
The cells that provide the defense for the CNS are called microglia. Those cells are also glial cells, derived from macrophages and thus, part of active immune defense.
 
        
             
        
        
        
Answer:
Synthesize new drugs expand the world’s food production.
Explanation:
Green revolution was started in the 1960's with the main aim to increase the food production by 60-70% to feed the increasing population. The food grains especially rice and wheat.
The green revolution can be more beneficial  by applying the benefits of the genetics. The discovery of the new drug or improvement in the earlier food products or the introduction of the desired drug protein in the food can improve the health of the organisms.
Thus, the correct answer is option (C).
 
        
             
        
        
        
The answer is Yes, Chipmunks do have enlarged front teeth for gnawing.
        
             
        
        
        
Answer:
Extra carbon dioxide in the atmosphere increases the greenhouse effect. More thermal energy is trapped by the atmosphere, causing the planet to become warmer than it would be naturally Explanation: yeah