animal organisation , the symetry and coelom and animal cell Online Test

The rearest type of symmetry is found in
radio larians
heliozoans
amoeba
both 1 and 2
The type of symmetry found in the echinoderms in the larval stage and in the adult stage is ____ and ______ respectively
bilateral and penta radial
penta radial and bilateral
radial and biradial
radial and spherical
in adult gastropodan of Mollusca the change in the symmetry is due to ______
habitat
torsion
mode of life
nono of these
The following has the feature in which there is no body cavity
turbellarians
trematodans
cestoda
all the above
the following has the condition in which the body is tubular having a tubular alimentary canal
acoelomate
pseudo coelomate
enterocoelomate
schizo coelomate
The cell oraganelle which is responsible for internal respiration is having one of the following features
has 70 s ribnosome
has double membrane with internal cristae
has role in the generation of power ---- power house of the cell
all the above
The organelle which produce the hydrolysising enzymes
ribosomes
lysososmes
endosomes
nucleus
The lowes grade of organisation is seen in protozoans as
cellular grade
tissue grade
organ grade
protoplasmic grade
A condition which has two planes of symmetry is
radial
biradial
bilateral
spherical
A layer of cells that line the archenteron are of _ origin
endodermal
mesodermal
ectodermal
all the above
The undifferentiated mass of mesodermal cells is called parenchyma or mesenchyma is found in ______
platyhelminthes
nematoda
cnidarians
ctenophora
The stage which has no opening is called
blastula
gastrula
both 1 and 2
none of these
In eukaryoyes cell the 70 s ribosomes are present in
freely scaterred in the cytoplasm
attached to the endoplasmic reticulum
present in the matrrix of the mitochondria
present in the centrosome
ciliary movement is initiated by
lysosomes
kinetosomes
ribosomes
mitochondria
coelom arise as pouches from the alimentary canal in
arthropoda
mollusca
nematoda
echinodermata
Triploblastic animals with persistent blastocoel may also exhibit this feature
ladder like nervous system
formation of coral reefs
alimentary canal with a single opening
excretory system with canals and renette cells / glands
These are first seen in flat worms
true coelom , organ grade of organisation
mesoderm in the body wall , nerve cells and sensory cells
centralised nervous system , bilateral symmetry
bilatteral symmetry , anus in the alimentary canal
radial symmetry is seen in the following
amoeba
entamoeba
hydra
adamsia
Bilateral symmetry animals with free swimming nature have the advantages of exploring the new areas due to the presence of
triploblastic nature
eucoelomate condition
metamerism
cephalisation
The cell organelle which carry out theintracellular digestion and intracellular respiration to the cell are __ and ____ respectively
lysosomes and ribosomes
ribosomes and miotochondria
mitochondria and ribosomes
lysosomes and mitochondria
The worms with a collagenous cuticle has the feature in addition to the tubular body with a anus formed for the first time in the animal kingdom .
Ancyclostoma
Enterobius
Ascaries
all the above are nematodas
Metazoans with out nervous coordination are
cnidarians
sponges
acoelomates
roundworms
Neither a body cavity nor a secondary coelom is seen in the following
tape worm
ship worm
earth worm
filaria worm
first opening in the development becomes the anus in the following
Acoelomates
pseudocoelomates
schizocoelomates
enterocoelomates
Animal in which body cavity is present but the peritoneal layer is absent in the following
Fasciola
Pheritima
Hirudo
Ascaries





























































































































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