<em><u>Answer</u></em>
<em><u>about 3.9 billion years ago</u></em>
<em><u>about 3.9 billion years agoThe most recent common ancestor of all currently living organisms is the last universal ancestor, which lived about 3.9 billion years ago.</u></em>
 
        
             
        
        
        
From a fungus called Verticillium.
Hope this helps!! :)
        
                    
             
        
        
        
Answer:
neurotransmitter is a chemical messenger that carries, boosts, and balances signals between neurons (also known as nerve cells) and target cells throughout the body.
 
        
             
        
        
        
Well, Euglena is in phylum Euglenophyta, and Paramecium is in phylum Ciliophora. You can verify that with a quick Google search. 
<span>Does that sort of narrow it down? :)</span>
        
                    
             
        
        
        
Answer; 
Decision making and emotion; memory and visual processing
Explanation;
Cingulate Cortex  is a subcortical structure above the corpus callosum. its anterior (Forward) segment participates in decision making and emotion, and its posterior (rear) segment participates in memory and visual processing. 
-The forward 2/3 of this structure, the ACC: anterior cingulate cortex- participates along with the hypothalamus in the control of the autonomic nervous system (also roles in decision making, emotion, anticipation of reward, and empathy)
The rear third, PCC: Posterior cingulate cortex participates in memory and visual processing.