A cell that is specialized  to receive and transmit is called a neuron
        
             
        
        
        
Answer:
A
Explanation:
 (March 16, 1774[1] – 1834) was the inventor of a cast-iron moldboard plow with replaceable parts, the first commercially successful iron moldboard plow
 
        
             
        
        
        
Glycoprotein Cell Receptors, but you can probably just put proteins
        
             
        
        
        
Answer:
N
Explanation:
Both carbohydrates and lipids contain Carbon, Hydrogen, and Oxygen. However, all proteins have Nitrogen as well.
 
        
             
        
        
        
The carbon footprint can be decreased by a great amount if the incandescent bulbs are replaced with the compact fluorescent bulbs. The compact fluorescent bulbs uses approximately seventy five percent less energy than the incandescent bulbs as they do not use heating mechanism to light. This leads  to less emission of the green house gases and thereby reducing the carbon footprint. 
Hence, the correct answer is 'option a - replacing incandescent bulbs with compact fluorescent bulbs'.