Because the melting/freezing point is the point at which the particles in a substance begin to go through the phase change
so for example at 0 degree's Celsius water starts to freeze, but at the same time also melts, its sorta like some of the particles are freezing while the others are melting at the same time, but if you go above 0 degrees then it melts, and if you go below it freezes
I don't see anything but I know that what you might be talking about goes like this...
Domain, Kingdom, Phylum, Class. Order, Family, Genus, species.
Hope this helped!
Bacteria mostly act as "Decomposer" 'cause they decompose the dead & decaying matter, back into inorganic materials.
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It seems that you have missed to include the necessary options for this question so I had to look for it. Here is the answer. The one that lymphoid cells traps antigens and transport them to lymph nodes are the T LYMPHOCYTES. Hope this answers your question.