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4

In the course of evolution, the true coelom appeared first in

A. aschelminthes

B. annelida

C. arthropoda

D. echinodermata

Correct Answer :

B. annelida


Related Questions

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4

Which of the following is not a deuteros-tome phylum ?

A. Mollusca

B. Echinodermata

C. Hemichordata

D. Urochordata

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4

Which of the following has no segmentation ?

A. Hydra

B. Earthworm

C. Cockroach

D. Centipede

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4

Which one of the following sets of animals are homeothermic ?

A. Salamandar, lizard, penguin and bat

B. Tortoise, crocodile, crow and bat

C. Crow, penguin, bat and rat

D. Turtle, ostrich, spiny ant eater and dog

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4

Body segments are said to be homono-mous when

A. external segments correspond to internal segments

B. the body of an animal is made up of dissimilar units

C. all body segments along the length of the body are similar

D. none of these

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4

Biramous appendages are typically found in

A. insects

B. crustaceans

C. annelids

D. arachnids

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4

Glass snake is a

A. lizard

B. tree snake

C. nematode

D. fish

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4

A reptile with a four-chambered heart is

A. python

B. chameleon

C. turtle

D. crocodile

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4

Largest animals belong to class

A. arthropoda

B. pisces

C. mammalia

D. reptilia

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4

The system of classification proposed by Linnaeus is regarded by modem biologists as

A. an artificial system of classification

B. a natural system of classification

C. a system based on phylogeny

D. none of these

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4

Which one is an unmatching pair ?

A. Lamprey-Agnatha

B. Shark-Chond rich thyes

C. Turtle-Amphibia

D. Lizard-Reptilia

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4

Aphrodite, commonly called as sea mouse is a/an

A. annelide

B. fish

C. mollusc

D. arthropod

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4

Aside from a three chambered heart, reptiles are characterised by the presence of

A. limb girdles

B. dermal scales

C. lungs

D. dorsal nerve cord

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4

Tube in the tube' plan is exhibited by one of the following phyla :

A. Coelenterata

B. Porifera

C. Annelida

D. Arthropoda

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4

Tortoises and turtles are included under order

A. Reptilia

B. Squamata

C. Chelonia

D. None of these

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4

Sea Stick refers to group

A. porifera

B. coelentrata

C. annelida

D. mollusca

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4

The smallest unit of classification in animals is

A. variety

B. species

C. sub species

D. genus

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4

Which is the common character between all mammals ?

A. They are viviparous

B. They are herbivores

C. They are carnivores

D. They have 7 cervical vertebrae

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4

A triploblastic animal in which I mesenchyme fills the space between ectoderm and endoderm is

A. Sea anemone

B. Planarian

C. Pheretima

D. Starfish

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4

Presence of a vestigeal appendix in man suggests that our forebears were

A. herbivores

B. carnivores

C. omnivores

D. fruit eaters

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4

Which one of the following sets of animals belongs to class cydostomata

A. Amphioxus and Balangolossus

B. Petromyzon and Myxine

C. Herdmania and Myxine

D. Herdmania and Amphioxus

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4

The larval forms called bladder worms are characteristic of

A. intestinal parasites

B. earthworms

C. roundworms

D. tapeworms

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4

Which of the following pairs of specific names belongs to the same genus

A. histolytica and proteus

B. histolytica and coli

C. histolytica and falciparum

D. histolytica and rocktertil

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4

Which one of the following is a coelenterate ?

A. Tea cucumber

B. Sea urchin

C. Sea horse

D. Sea pen

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4

The beak of birds is toothed in

A. Ostrich

B. Kiwi

C. Archaeopteryx

D. Pelican

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4

The term "Monera" stands for

A. all prokaryotes

B. bacterai, blue green algae and sinlge celled eukaryotes

C. bacteria, blue green algae and single celled eukaryotic animals

D. single celled eukaryotes and prokaryotes

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4

According to Aristotle's classification, animals were divided into

A. Protozoa and Metazoa

B. Invertebrata and Vertebrata

C. Chordata and Non-chordata

D. Anaima and Enaima

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4

Which of the following is a correct hierar-chial sequence in systematics ?

A. Species, genus, family, order, class, phylum

B. Species, genus, order, family, class, phylum

C. genus, species, order, family, class, phylum

D. genus, family, order, class, species, phylum

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4

The main basis of classification of Phylum Protozoa is

A. size

B. locomotary organelles

C. shape

D. number of nuclei

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4

Spider differs from insect as

A. spider has three pairs of legs

B. insect has four pairs of legs

C. spider has four paris of legs

D. none of these

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4

Segmentation of the body is not represented in

A. crayfish

B. frog

C. grasshopper

D. starfish