When influenza invades the respiratory tract, neutrophils guide the subsequent T-cell attack on infected tissue, scientists show.
Scanning electron micrograph of Candida parapsilosis yeast (green) adhering to a human endothelial monolayer (pink) and being enveloped by thin membrane extensions from endothelial cells.
August 19, 2013|
August 19, 2013
So why is this happening? Why do we see this kind of picture witha description of what is happenng, but almost never what the purposes of the various actors n the picture are? Is ir because scientists don't consider that cellular activity is purposeful? Or at least not to any intelligent extent?