locomotion
food capturing
locomotion and food capturing
respiration
C. locomotion and food capturing
musculo-epithelial cells
interstitial cells
digestive cells
nerve cell
marine, radial, symmetrical and diploblastic
fresh water, biradial, symmetrical and triploblastic
fresh water, radial, symmetrical and diploblastic
marine, radial, symmetrical and triploblastic
diploblastic
integument
multicellular
triploblastic
somersaulting
contracting a part or whole of its body
walking away
looping
musculo-epithelial cells
musculo-nutritive cells
sensory cells
cniboblasts
Aurelia
Hydra
Metridium
Physalia
absence of musculoepithelial cells in the body wall
absence of nematocysts
absence of sensory cells
absence of sexual reproduction
ectoderm
endoderm
mesoglea
coelenteron
stirring up the digestive fluid in the digestive cavity
engulfing food particles
engulfing semi-digested particles inside food- absorbing cells
none of these
locomotion
balancing
swimming
reproduction
steptoline or atrichous
streptoline or holotrichous
volvent or desmonemes
penetrant or stenoteles
Zoochlorella
Chlamydomonas
Euglena
None of these
plenty of food is present
pond is going dry
Hydra is alone
water becomes muddy
cataching prey
paralysing prey
testing the food
testing the water
attachment
respiration
food capturing
offense
Sea anemone
Aurelia
Obelia
Hydra
sensory cells
nerve cells
interstitial cells
all of these
hydrozoa
scyphozoa
anthozoa
all the three
Tubularia
Obelia
Hydra
Physalia
asymmetrical
bilaterally symmetrical
radially symmetrical
irregular
Hydra vulgaris
Chlorohydra viridisma
Hydra oligaetis
None of these
Connective tissue
Epithelial tissue
Muscular tissue
Nervous tissue
Endodermal cells
Mouth
Nematocysts
Tentacles
upper part
middle part
tentacles
lower part
intracellular
extracellular
first extracellular, then intracellular
first intracellular, then extracellular
sponges
anthozoans
molluscs
hydrozoans
several types of organ-systems in an individual
different kinds of larval forms in the life history of an animal
different functions performed by a single kind of organism
several different types of individuals in a species
mesoglea
general surface
pellicle
gastrodermis
both parts die
both parts make up the loss and form two new individuals
both parts live independently as they are
none of these
Plenty of food is present
Pond dries up
Water becomes muddy
Hydra is alone