T-cells are a type of white blood cell that circulate around our bodies, scanning for cellular abnormalities and infections.
        
             
        
        
        
The property called cohesion
        
             
        
        
        
Answer:the largest taxon is kingdom and it is divided into phylum class order genus species 
Explanation:
 
        
             
        
        
        
Differentiation in plants refers to the processes by which distinct cell types arise from precursor cells and become different from each other. Plants have about a dozen basic cell types that are required for everyday functioning and survival. Additional cell types are required for sexual reproduction. While the basic diversity of plant cell types is low compared to animals, these cells are strikingly different. For example, some cells such as parenchyma cells retain the potential to respond to environmental and/or hormonal signals throughout their life and, under the right conditions, can be transformed into another cell type (transdifferentiation). Other cells such as the water-conducting vessel elements undergo cell death as part of their differentiation pathway and thus can never transdifferentiate to another cell type
Read more: http://www.biologyreference.com/Co-Dn/Differentiation-in-Plants.html#ixzz54pAhWVdn
        
             
        
        
        
Answer:
A. Hydrogen bonds
Explanation:
A. Hydrogen bonds causes water molecules to stick together in liquid water.