Hydra /ˈhaɪdrə/ is a genus of small, fresh-water animals of the phylum Cnidaria
and class ... cnidae), is clothed with highly specialised stinging cells called
cnidocytes. ... The cel...
A common organism to study in a biology lab is the hydra. ... Anemones are often
very colorful and have hundreds of tentacles that wave in the water currents while
... The fish becomes paralyzed by the stinging cells and eventually is pushed into
the anemone's ... In a single sentence, identify the MAIN POINT of the article.
They are among the simplest of the so-called "higher" organisms, but are also ...
All Cnidarians have tentacles with stinging cells in their tips which are used to ...
Cnadrians are another group of sea animals that have tentacles. ... All cndarians
have stinging cells called nematocytes that they use to envenomate prey or ...
Sea anemones and corals have the polyp form, while jellyfish are typical
medusae. ... small (or thin) organisms (ones which have a large surface area
compared to their volume) ... The tentacles are covered with stinging cells (
10)May have a minimal skeleton of chiton or calcium carbonate. Introduction. The
Cnidaria (pronounced nidaria)as a group of animals are well known to many ...
specialised cells which contain the Nematocysts, the stinging organelles that
allow ... at the opening, generally surrounded by tentacles, there is no distinct
Up to 15 tentacles grow from each corner of the bell and can reach 10 feet (3
meters) in length. Each tentacle has about 5,000 stinging cells, which are
www2.hendrix.edu/biology/dearolf/Zoology Manual chap3&4 - Secured.pdf
Cnidocytes, or stinging cells, are the distinctive characteristic of. Phylum Cnidaria
.... tentacles, is free swimming, and has a much thicker mesoglea. Look at the
slide ..... Be able to identify the organism and know it is a pseudocoelomate.
But jellyfish are also harbingers of pollution that kills other marine organisms. ...
With about 200 species world-wide, one could easily learn to identify them. ... All
cnidaria have stinging cells adapted to stun and catch prey (see box). ... Its long
tentacles hanging down from the bell's rim, can reach five metres while being ...
Unlike more complex animals, cnidarians are designed around 2 sheets of ... of
hydra have been recorded in the Great Plains, but most are difficult to identify ...
Classification depends on the structure of the eggs and stinging cells (see below)
. All of these species have tentacles that are similar in length to the column or ...