|
The excerpt represents the core issue or deciding factor on which you must meditate, and is drawn from Glaucus/The Wonders of the Shore by Charles Kingsley: compound ascidians that they have been termed, as an order,
"Zoophyta ascidioida."
The simplest form of polype is that of a fleshy bag open at one
end, surmounted by a circle of contractile threads or fingers
called tentacles. The plate shows, on a very minute scale, at
figs. 1, 3, and 6, several of these little polypiform bodies
protruding from their cells. But the Hydra or Fresh-water Polype
has no cell, and is quite unconnected with any root thread, or with
other individuals of the same species. It is perfectly free, and
so simple in its structure, that when the sac which forms its body
is turned inside out it will continue to perform the functions of
|
