attachment
respiration
food capturing
offense
B. respiration
toxin
venom
hypnotoxin
haematin
sensory cells
nerve cells
interstitial cells
all of these
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
diploblastic
integument
multicellular
triploblastic
attachment
respiration
food capturing
offense
Locomotion
Predation
Both (a) and (b)
Reproduction
cataching prey
paralysing prey
testing the food
testing the water
Hydra
Obelia
Monkey
Elephant
locomotion
food capturing
locomotion and food capturing
respiration
asymmetrical
bilaterally symmetrical
radially symmetrical
irregular
protogynous
hermaphrodite
monoecious
protandrous
saprozoic
herbivorous
insectivorous
carnivorous
Connective tissue
Epithelial tissue
Muscular tissue
Nervous tissue
digestion and circulation
digestion and storage
excretion and digestion
circulation and storage
prefers weak light
moves away from strong light
avoids chlorinated water
moves to water of low temperature
porifera
coelentrata
annelida
platyhelminthes
hydrozoa
scyphozoa
actinozoa
all of these
hydrozoa
scyphozoa
actinozoa
all of these
hydrula
planula
tadpole
amphiblastula
locomotion
balancing
swimming
reproduction
musculo-epithelial cells
musculo-nutritive cells
sensory cells
cniboblasts
both parts die
both parts make up the loss and form two new individuals
both parts live independently as they are
none of these
below the ovaries
below the tentacles
further down the tentacles to occupy central position of the body
anywhere on the body between tentacles and adhesive disc
steptoline or atrichous
streptoline or holotrichous
volvent or desmonemes
penetrant or stenoteles
cellular layers
tissues
cell differentiation
organs
coenosarc of Obelia
perisarc of Obelia
body wall of Sea anemone
umbrella of Aurelia
musculo-epithelial cells
interstitial cells
digestive cells
nerve cell
battery of nematocysts
group of nematocysts
armed thread
none of these
Aurelia
Sea anemone
Obelia
Hydra
intracellular
extracellular
first extracellular, then intracellular
first intracellular, then extracellular