Pioneer species are the first species that colonize places where there were previously no other living organisms, such as algae that colonize bare rocks. ... Therefore, they pave the way for other species to establish themselves at the location through the creation of new potential ecological<span> niches.</span>
        
             
        
        
        
Answer: FGF5 is produced in the outer root sheath of the hair follicle as well as perifollicular macrophages, with maximum expression occurring in the late anagen phase of the hair cycle. The receptor for FGF5, FGFR1, is largely expressed in the dermal papilla cells of the hair follicle.
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The gland that controls formation would be testes.
 
        
                    
             
        
        
        
Anxious and apprehensive are signs that the patient doesn't have enough blood to his brain. The cause probably is the low blood pressure. <span>
Open abdominal surgery is a major surgery so it should have a high risk of bleeding. </span>Bleeding in abdominal space is dangerous because it was not visible and space is massive. The source could be a rupture of a blood vessel or broken stitch of the surgical wound. 
<span>Then, the most likely cause for the sudden blood pressure drop in this patient would be massive bleeding. 
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Light is the energy source in Photosynthesis! 
Hope this helped!