The collecting tubules,then into the calyces
        
                    
             
        
        
        
Answer:
The incorrect conclusion is D that is finding burial sites of <em>Homo habilis </em>on different countries.
Explanation:
<em>Homo habilis</em> are called as stone age human that are appeared  between 2.1 and 1.5 million years ago and they use tools that are made up of stone which they use to kill the animals. They are called as scavengers and they didn't have any knowledge about bury the dead bodies.
<em>Homo neanderthalensis</em> are the extinct species of human that appears at about 40,000 years ago who bury the dead body but they became extinct due to competition and they did't able to adopt the modern techniques.This was the prime factor that they became extinct.
 
        
                    
             
        
        
        
<h3><u>Answer;</u></h3>
b). Activation of an upstream guanine nucleotide exchange factor
<h3><u>Explanation</u>;</h3>
- <em><u>When a ligand activates the G protein-coupled receptor, it induces a conformational change in the receptor that allows the receptor to function as a guanine nucleotide exchange factor (GEF) that exchanges GDP for GTPthus turning the G protein-coupled receptor on.</u></em>
- The activated G-protein then dissociates into an alpha (G-alpha) and a beta-gamma complex. 
 
        
        
        
Answer:
protiens: amino acids
lipids: fatty acid and glycerol
carbohydrates: monosaccharides 
nucleic acid: nucleotides 
Explanation:
 
        
             
        
        
        
Take one tab by mouth up to four times a day, before meals and at bedtime.