Musculo-glandular cells are found in hydra
on the tentacles
on the hypostome
on the basal disc
in the gastrodermis
Correct Answer :
C. on the basal disc
Related Questions
Musculo-glandular cells are found in hydra
on the tentacles
on the hypostome
on the basal disc
in the gastrodermis
The poisonous fluid present in the nematocysts of Hydra is
toxin
venom
hypnotoxin
haematin
A coelentrate, commonly known as fresh water polyp is
Hydra
Obelia
Physalia
Acerelia
Which of the following animals has a nervous system but no brain ?
Earthworm
Hydra
Amoeba
Cockroach
The scientific name of organ pipe coral is
Tubipora
Astrangia
Meandra
Aeropora
A hydranth is
Blastostyle of Obelia
Gonad of Hydra
Medusa of Obelia
Polyp of Obelia
The larva of Hydra is known as
hydrula
planula
tadpole
amphiblastula
Hydra is put under phylum coelentrata because it has
tentacles
cnidoblasts
hypostome
interstitial cells
The testes of hydra are located
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
In jelly fishes, the adult is always
polypoid
medusoid
polymorphic
hydroid
Hydra reproduces by gemmation (budding) when
Plenty of food is present
Pond dries up
Water becomes muddy
Hydra is alone
Nematocysts of Hydra are important for
cataching prey
paralysing prey
testing the food
testing the water
The body of Hydra is
asymmetrical
bilaterally symmetrical
radially symmetrical
irregular
Tentaculocysts in Obelia are meant for
locomotion
balancing
swimming
reproduction
Coelenteron in Hydra serves the purpose of
digestion and circulation
digestion and storage
excretion and digestion
circulation and storage
A chitinous material is present in the
coenosarc of Obelia
perisarc of Obelia
body wall of Sea anemone
umbrella of Aurelia
The small green alga that lives inside Hydra is called
Zoochlorella
Chlamydomonas
Euglena
None of these
The number of tentacles in Hydra is
24
610
1040
4050
Hydra is negatively chemotropic because it
prefers weak light
moves away from strong light
avoids chlorinated water
moves to water of low temperature
The nematocysts which are mainly used for defense and offense and which tightly coil around the prey are
steptoline or atrichous
streptoline or holotrichous
volvent or desmonemes
penetrant or stenoteles
Which of the following tissue is absent in Hydra ?
Connective tissue
Epithelial tissue
Muscular tissue
Nervous tissue
Strobilization is the characteristic feature of
Aurelia
Hydra
Metridium
Physalia
Coelenteron of Hydra serves the double purpose of
digestion and circulation
digestion and storage
excretion and locomotion
circulation and storage
Digestion in Hydra is
intracellular
extracellular
first extracellular, then intracellular
first intracellular, then extracellular
Hydra has no special structure for
attachment
respiration
food capturing
offense
In Hydra, the nematocysts are abundant on
upper part
middle part
tentacles
lower part
Tentacles of Hydra help in
locomotion
food capturing
locomotion and food capturing
respiration
Hydra is
marine, radial, symmetrical and diploblastic
fresh water, biradial, symmetrical and triploblastic
fresh water, radial, symmetrical and diploblastic
marine, radial, symmetrical and triploblastic
The body wall of Hydra consists of
ecotderm and endoderm
ectoderm and mesoderm
ectoderm, mesoderm and endoderm
epidermis, mesoglea and endoderm
Ctenophores generally exhibit
bilateral symmetry
radial symmetry
asymmetry
spherical symmetry