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Current Affairs January 2024

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4

Which is a matching set in taxonomy ?

A. Liver fluke, tapeworm, roundworm

B. Sea urchin, sea fan, sea cucumber

C. Leucosolenia, Sycon, Euspongia

D. Plasmodium, Hydra, Planaria

Correct Answer :

C. Leucosolenia, Sycon, Euspongia


Related Questions

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4

Which of the following groups of characters is present in all chordates in some or other stage in their life ?

A. Mammary glands, hairs, gill slits

B. Notochord, gill slits and dorsal ! tubular nervous system

C. Notochord, scales and dorsal tubular nervous system

D. Gill slits, vertebral column and notochoitl

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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

All mammals have hair, but these are absent in order

A. Cetacea

B. Primates

C. Rodentia

D. Chiroptera

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4

Turbellarians are

A. parasitic flatworms

B. free living flatworms

C. parasitic tapeworms

D. free living tapeworms

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4

All animals which do not have the vertebral column are

A. protozoa

B. invertebrate

C. nonchordata

D. chordata

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4

Which of the following is not an acoelomate animal ?

A. Sponge

B. Jelly fish

C. Tapeworm

D. Roundworm

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4

Diploblastic acoelomate condition is found in

A. Ascaris

B. Planaria

C. Rotifer

D. Sea anemone

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4

Which one is characteristic for birds ?

A. They are flying animals

B. They are warm blooded

C. They are bipedal and have feathers

D. They are quadruped and have scales

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4

Which of the following belongs to the same phylum ?

A. Mollusca, cockroach, centipede

B. Turbellaria, cestoda, trematoda

C. Both (a) and (b)

D. None of these

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4

A suctorial mouth is present in

A. leech

B. cockroach

C. housefly

D. butterfly

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4

Cloning is possible in nature in

A. sexually reproducing species

B. asexually reproducing species

C. self-fertilising species

D. none of these

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4

The locust is

A. an arthropod

B. a mollusc

C. an insect

D. an echinoderm

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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

Platyhelminthes are called

A. flat worms

B. roundworms

C. tapeworms

D. blind worms

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4

What is common to fishes, amphibians and reptiles ?

A. Scales

B. Eggs

C. Shelled eggs

D. Gills

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4

Canal system is characteristic of

A. hydra

B. sponge

C. sea anemone

D. sea urchin

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4

Chief distinguishing features of mammals are

A. hairy skin and ovipary

B. hairy skin and mammary glands

C. mammary glands and teeth

D. pinnae and teeth

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4

Which one is a cold blooded animal

A. Penguin

B. Whale

C. Otter

D. Tortoise

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4

Which one of the following sets has all hermophrodite animals ?

A. Ascaris, Hydra, Earthworm

B. Leech, Hydra, Tapeworm

C. Hydra, Man, Leech

D. Tapeworm, Toad, Starfish

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4

In which of the following sets, groups are not correctly matched ?

A. Onychophora, Myriapoda, Arachnida

B. Hydrozoa, Scyphozoa, Anthozoa

C. Polychaeta, Hirudiniea, Oligochaeta

D. Gastropoda, Rhizopoda, Scaphopoda

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4

Structures built on a common plan, but modified during the course of evolution : to serve particular function in different animals are regarded as

A. homologous

B. analogous

C. both homologous and analogous

D. phylogenetically related

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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 biggest phylum in regard to the number of species is

A. Arthropoda

B. Platyhelminthes

C. Chordata

D. Protozoa

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4

Which of the following animals has a ventral nerve cord

A. Frog

B. Cockroach

C. Hydra

D. Earthworm

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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

Sepia is also known as

A. star fish

B. cartilagenous fish

C. jellyfish

D. cuttlefish

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4

The taxonomic unit of any rank/category is known as

A. species

B. taxon

C. taxis

D. genus

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4

Physalia, the "Portugese man of War" belongs to class

A. Coelenterata

B. Hydrozoa

C. Scyphozoa

D. Anthozoa

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4

The generic name of apple snail is

A. Limax

B. Pila

C. Sepia

D. Murex

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4

Animals belonging to order Rodentia have

A. long incisors

B. long canines

C. short canines

D. short incisors