His now aging Trek performed admirably.
I performed exactly as I should have, and yet, they died.
Each visitor performed the ceremony of greeting this old aunt whom not one of them knew, not one of them wanted to know, and not one of them cared about.
This was performed with great success, and the vessel was floated off with the evening tide.
It is true that in the unicellular plants all the vital activities are performed by a single cell, but in the multicellular plants there is a more or less highly developed differentiation of physiological activity giving rise to different tissues or groups of cells, each with a special function.