The scientific name of organ pipe coral is
Tubipora
Astrangia
Meandra
Aeropora
Correct Answer :
A. Tubipora
Related Questions
Among coelenterates medusoid individuals are absent in members of the class
hydrozoa
scyphozoa
anthozoa
all the three
Enteron is divided by mesentries in
Aurelia
Sea anemone
Obelia
Hydra
Ctenophores generally exhibit
bilateral symmetry
radial symmetry
asymmetry
spherical symmetry
In Hydra, the nematocysts are abundant on
upper part
middle part
tentacles
lower part
The scientific name of organ pipe coral is
Tubipora
Astrangia
Meandra
Aeropora
A coelentrate, commonly known as fresh water polyp is
Hydra
Obelia
Physalia
Acerelia
A piece of Hydra will regenerate into a full Hydra if it contains a part of
epidermis alone
gastrodermis alone
both (a) and (b)
(a), (b) and tentacles
Tentacles of Hydra help in
locomotion
food capturing
locomotion and food capturing
respiration
A Hydra usually possess
single testis and many ovaries
single ovary and many testes
one testis and one ovary
many testes and many ovaries
The body wall of Hydra consists of
ecotderm and endoderm
ectoderm and mesoderm
ectoderm, mesoderm and endoderm
epidermis, mesoglea and endoderm
Hydra responds to a strong mechanical stimulus such as agitating the surface of water by
somersaulting
contracting a part or whole of its body
walking away
looping
Musculo-glandular cells are found in hydra
on the tentacles
on the hypostome
on the basal disc
in the gastrodermis
The mesoglea of Hydra contains
nerve cells
sensory cells
muscle fibres
no cells
If a Hydra is cut into two pieces, it is noted that
both parts die
both parts make up the loss and form two new individuals
both parts live independently as they are
none of these
"Portuguese Man of War" is the common name for
Aurelia
Metridium
Physalia
Tubipora
In Hydra, the physiological division of labour is exhibited by
cellular layers
tissues
cell differentiation
organs
Pueumatophore is present in
Tubularia
Obelia
Hydra
Physalia
Communication between the enteron and exterior in coelentrates is through
mouth only
mouth and anus
large number of pores in the body wall
both (b) and (c)
Which one is found in Hydra
Metabolism
Metamerism
Melting
Metamorphosis
Nematocytes are the specialised cells found in the members of the phylum
porifera
coelentrata
annelida
platyhelminthes
Coelenteron of Hydra serves the double purpose of
digestion and circulation
digestion and storage
excretion and locomotion
circulation and storage
Ephyra is the larval form of
Sea anemone
Aurelia
Obelia
Hydra
Polymorphism is best defined as the occurrence of
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
Polymorphism is found in
Hydra
Aleyonium
Aurelia
Physalia
The poisonous fluid present in the nematocysts of Hydra is
toxin
venom
hypnotoxin
haematin
The flagella of food-absorbing cells in hydra aid in
stirring up the digestive fluid in the digestive cavity
engulfing food particles
engulfing semi-digested particles inside food- absorbing cells
none of these
The tentacles of Hydra are
pinnate
hollow
solid
frilled
In Hydra, buds always arise at
the hypostome
the junction of hypostome and stomach
in junction of stomach and stalk
the stomach
Hydra is negatively chemotropic because it
prefers weak light
moves away from strong light
avoids chlorinated water
moves to water of low temperature
What structures in Hydra functionally correspond to the pseudopodia of Aamoeba ?
Endodermal cells
Mouth
Nematocysts
Tentacles