Taenia, Periplaneta and Pheretima are non-chordates because
their body is segmented
they do not possess a post-anal tail
they do not have a coelom
all of these
Correct Answer :
B. they do not possess a post-anal tail
Related Questions
True coelom appeared first in the course of evolution in
Echinodermata
Annelida
Chordata
Aschelminthes
Which of the following shows deuteros- I tome condition ?
Acoelomate animals
Pseudocoelomate animals
Animals with enterocoel
Animals with schizocoel
Echis carinata is known as
coral snake
brain coral
tree snake
none of these
Duck bill platypus is
primitive burrowing egg laying mammal
advanced egg laying reptile
primitive egg laying reptile
primitive aquatic egg laying animal
Sea Stick refers to group
porifera
coelentrata
annelida
mollusca
Cloning is possible in nature in
sexually reproducing species
asexually reproducing species
self-fertilising species
none of these
Which of the following groups of characters is present in all chordates in some or other stage in their life ?
Mammary glands, hairs, gill slits
Notochord, gill slits and dorsal ! tubular nervous system
Notochord, scales and dorsal tubular nervous system
Gill slits, vertebral column and notochoitl
Chief distinguishing features of mammals are
hairy skin and ovipary
hairy skin and mammary glands
mammary glands and teeth
pinnae and teeth
Ophiosaurus commonly known as glass snake is a
limbless amphibian
limbless snake
limbless lizard
limbless fish
The correct phylogenetic sequence in taxonomy is
Pisces, Amphibia, Reptilia, Mammalia
Pisces, Reptilia, Amphibia, Mammalia
Amphibia, Pisces, Reptilia, Mammalia
Amphibia, Reptilia, Pisces, Mammalia
Which of the following belongs to Mollusca ?
Starfish
Dogfish
Silver fish
Goldfish
Which of the following animals has a ventral nerve cord
Frog
Cockroach
Hydra
Earthworm
The term 'Protista' was given by
Carolus Linnaeus
E. Haeckel
G.L. Cuvier
John Ray
Aphrodite, commonly called as sea mouse is a/an
annelide
fish
mollusc
arthropod
Match the species :
Scorpion, Spider
Scorpion, Obelia, Hydra
Star fish, Obelia, Hydra
Cockroach, Earthworm, Taenia solium
Limulus, the king-crab, is the only living representative of the order xiphosura belonging to the phylum
Annelida
Mollusca
Echinodermata
Arthropoda
The group amniota includes
birds and mammals
birds and reptiles
reptiles and mammals
reptiles, birds and mammals
Which of the sponge is given as a gift in Japan?
Hyalonema
Euplectalla
Tethya
Leucosolenia
Which of the following pairs of specific names belongs to the same genus
histolytica and proteus
histolytica and coli
histolytica and falciparum
histolytica and rocktertil
For finding a haemocoel which animal you will select ?
Earthworm
Hydra
Ascaris
Scolopendra
The smallest unit of classification in animals is
variety
species
sub species
genus
Antedon belongs to class
echinodermata
ophiuroidea
crinoidea
echinoidea
Which of the following has a diaphragm between the thorax and abdomen
Frog
Lizard
Pigeon
Whale
Temperature regulation is found in
Fish
Rat
Frog
Lizard
The most important characteristic of class aves is
homeothermous animals
exoskeleton of feathers
bipedal vertebrates
none of these
The locust is
an arthropod
a mollusc
an insect
an echinoderm
Which of the following is represented by the largest number of species ?
Insecta
Protozoa
Mammalia
Aves
The larval forms called bladder worms are characteristic of
intestinal parasites
earthworms
roundworms
tapeworms
A definite number of body segments is found in
leech
tapeworm
earthworm
slug
What is common to fishes, amphibians and reptiles ?
Scales
Eggs
Shelled eggs
Gills