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Science M.C.Q. [1 M]

Diversity in Living Organisms · MP Board (MPBSE) STD 9 (Madhya Pradesh - English Medium). 179 questions.

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M.C.Q. [1 M]

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MCQ 11 Mark
Hard calcium carbonate structures are used as skeleton by:
  • ✓
    Echinodermata.
  • B
    Protochordata.
  • C
    Arthropoda.
  • D
    Nematoda.
Answer
Correct option: A.
Echinodermata.
a. Echinodermata.
Explanation:
Body wall of echinodermata is covered with spiny, hard, calcareous (calcium carbonate) plates (ossicles) that form a rigid or flexible endoskeleton.
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MCQ 21 Mark
Organisms without nucleus and cell organelles belong to:
  1. Fungi.
  2. Protista.
  3. Cyano bacteria.
  4. Archae bacteria.
  • A
    $(i)$ and $(ii)$
  • ✓
    $(iii)$ and $(iv)$
  • C
    $(i)$ and $(iv)$
  • D
    $(ii)$ and $(iii)$
Answer
Correct option: B.
$(iii)$ and $(iv)$
Cyanobacteria and archaebacteria belong to kingdom$-$Monera. Monerans are organisms without nucleus and cell organelles and are called prokaryotes.
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MCQ 31 Mark
Radial symmetry is found in:
  • ✓
    Echinodermata.
  • B
    Annelida.
  • C
    Protozoa.
  • D
    Arthropoda.
Answer
Correct option: A.
Echinodermata.
Radial symmetry is found in the coelenterates and echinoderms.
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MCQ 41 Mark
Karl Von Linne was involved with which branch of science?
  • A
    Morphology.
  • ✓
    Taxonomy.
  • C
    Physiology.
  • D
    Medicine.
Answer
Correct option: B.
Taxonomy.
Carl von Linnaeus is known as Father of Taxonomy.
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MCQ 51 Mark
The skin is devoid of scales in:
  • A
    Cartilaginous fish.
  • B
    Bony fishes.
  • C
    Reptiles.
  • ✓
    Amphibians.
Answer
Correct option: D.
Amphibians.
The amphibian skin is moist $($without scales$).$
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MCQ 61 Mark
One of the following is not an Annelid:
  • A
    Nereis.
  • B
    Earthworm.
  • C
    Leech.
  • ✓
    Urchins.
Answer
Correct option: D.
Urchins.
Sea urchins belong to Coelenterate.
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MCQ 71 Mark
Which among the following produce seeds?
  • A
    Thallophytes.
  • B
    Bryophytes.
  • C
    Pteridophytes.
  • ✓
    Gymnosperms.
Answer
Correct option: D.
Gymnosperms.
The gymnosperms, also known as Acrogymnospermae, are a group of seed$-$producing plants that includes conifers, cycads, Ginkgo, and gnetophytes.
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MCQ 81 Mark
These are goods taken directly from natural resources.
  • A
    Cultural services.
  • B
    Supporting services.
  • ✓
    Provisioning services.
  • D
    Regulating services.
Answer
Correct option: C.
Provisioning services.
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MCQ 91 Mark
Echinoderms have:
  • ✓
    Water vascular system.
  • B
    Canal system.
  • C
    Jet propulsion.
  • D
    Book lungs.
Answer
Correct option: A.
Water vascular system.
The most distinctive feature of echinoderms is the presence of water vascular system which helps in locomotion, capture and transport of food and respiration.
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MCQ 101 Mark
Name the phylum in which animals have soft bodies covered with a hard shell:
  • A
    Arthropoda.
  • B
    Nematoda.
  • C
    Annelida.
  • ✓
    Mollusca.
Answer
Correct option: D.
Mollusca.
The group of soft body animals supported by calcareous shells is termed as Molluscs.
Molluscs are large phylum of invertebrates and even though they have diverse features one unique characteristic that is similar in them all is their body plan.
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MCQ 111 Mark
Who has proposed two kingdom classification?
  • A
    R.Whittaker.
  • ✓
    Carolus Linnaeus.
  • C
    Schimper.
  • D
    Eichler.
Answer
Correct option: B.
Carolus Linnaeus.

Two-kingdom classification was proposed by Carolus Linnaeus in $1758.$

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MCQ 121 Mark
Fungi resemble animals in having:
  • A
    Mycelium.
  • B
    Chitin.
  • C
    Glycogen.
  • ✓
    both $(b)$ and $(c).$
Answer
Correct option: D.
both $(b)$ and $(c).$

The cell walls of fungi are composed of chitin and polysaccharides.

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MCQ 131 Mark
Well defined nucleus is absent in:
  • ✓
    Blue green algae.
  • B
    Diatoms.
  • C
    Algae.
  • D
    Yeast.
Answer
Correct option: A.
Blue green algae.

Blue green algae belong to Monera which are prokaryotes and hence well defined nucleus in absent in them.

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MCQ 141 Mark
Which of the following is the largest phylum?
  • ✓
    Arthropoda.
  • B
    Ametida.
  • C
    Mollusca.
  • D
    Cnidaria.
Answer
Correct option: A.
Arthropoda.
This is the largest phylum of Animalia which includes insects. Over two$-$thirds of all named species on earth are arthropods.
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MCQ 151 Mark
Which among the following have scales?
  1. Amphibians.
  2. Pisces.
  3. Reptiles.
  4. Mammals.
  • A
    $(i)$ and $(iii)$
  • B
    $(iii)$ and $(iv)$
  • ✓
    $(ii)$ and $(iii)$
  • D
    $(i)$ and $(ii)$
Answer
Correct option: C.
$(ii)$ and $(iii)$

Amphibians and mammals do not have scales on their body.

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MCQ 161 Mark
Which one is a true fish?
  • A
    Jellyfish.
  • B
    Starfish.
  • ✓
    Dogfish.
  • D
    Silverfish.
Answer
Correct option: C.
Dogfish.
Jellyfish or jellies are approximately cylindrical vase shaped individuals of phylum$-$Cnidaria. These are free swimming marine animals consisting of a gelatinous umbrella shaped bell $($pulsate for locomotion$)$ and tentacles $($to capture prey$).$ Starfish are star shaped echinoderms. These are marine invertebrates which have a central disc and five arms, $($tube feet for locomotion$)$ Scoliodon $($dog fish$)$ belongs to the class$-$Chondricythes, i.e., pisces. These fishes are known as dog fish due to their, ability to smell. Lepismasacharina commonly known as silver fish is small wingless insect belongs to phylum$-$ Arthropoda.
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MCQ 171 Mark
Who has divided Prokaryota $($Monera$)$ into Archaea and Eubacteria?
  • A
    Haeckel.
  • B
    Copeland.
  • ✓
    Woese.
  • D
    Whittaker.
Answer
Correct option: C.
Woese.
Carl Woese divided the Monera kingdom into Archaea and Eubacteria.
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MCQ 181 Mark
In which group of animals, coelom is filled with blood?
  • ✓
    Arthropoda.
  • B
    Annelida.
  • C
    Nematoda.
  • D
    Echinodermata.
Answer
Correct option: A.
Arthropoda.
Blood is not present in other groups in the options.
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MCQ 191 Mark
Who proposed the concept of evolution?
  • A
    Aristoltle.
  • B
    Theophrastus.
  • ✓
    Darwin.
  • D
    Linnaeus.
Answer
Correct option: C.
Darwin.

Charles Darwin first described this idea of evolution in $1859$ in his book, The Origin of Species.

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MCQ 201 Mark
Phylogeny is study of:
  • A
    Development of an indicidual.
  • ✓
    Evolution of species.
  • C
    Embryonic development of an organ.
  • D
    Ecological adaptation of an organisms.
Answer
Correct option: B.
Evolution of species.
Phylogeny is study of evolutionary relationship among different groups of organisms.
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MCQ 211 Mark
Amphioxus belongs to:
  • A
    Craniata.
  • B
    Hemochordata.
  • C
    Urochordata.
  • ✓
    Cephalochordata.
Answer
Correct option: D.
Cephalochordata.
Amphioxus belongs to Cephalochordata. In cephalochordate, notochord extends from head to tail region and is persistent throughout the life.
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MCQ 221 Mark
Which is not an aquatic animal?
  • A
    Hydra.
  • B
    Jelly fish.
  • C
    Corals.
  • ✓
    Filaria.
Answer
Correct option: D.
Filaria.
Filaria is a disease which happens because of Wuchereria.
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MCQ 231 Mark
Genetic material of prokaryotes is called:
  • ✓
    Nucleoid.
  • B
    Nucleolus.
  • C
    Plasmid.
  • D
    Mesosome.
Answer
Correct option: A.
Nucleoid.
Prokaryotes have primitive type of genetic material called nucleoid.
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MCQ 241 Mark
Which of the following is non$-$motile?
  • ✓
    Euplectelea
  • B
    Planaria
  • C
    Hydra
  • D
    Ascaris
Answer
Correct option: A.
Euplectelea
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MCQ 251 Mark
Redwood tree of california reaches a height of:
  • A
    $25\ m.$
  • B
    $50\ m.$
  • C
    $75\ m.$
  • ✓
    $100\ m.$
Answer
Correct option: D.
$100\ m.$

One of the gymnosperms, the giant redwood tree, Sequoia is one of the tallest tree species. It reaches a height of $100\ m.$

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MCQ 261 Mark
These maintain the quality of air and soil and provide flood and disease control.
  • A
    Cultural services
  • B
    Supporting services
  • C
    Provisioning services
  • ✓
    Regulating services
Answer
Correct option: D.
Regulating services
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MCQ 271 Mark
Male Ascaris can be distinguished from female ones by:
  • A
    Urved posterior.
  • B
    Round shape end.
  • C
    Presence of penial setae.
  • ✓
    Both $(a)$ and $(c).$
Answer
Correct option: D.
Both $(a)$ and $(c).$

Male Ascaris are smaller than females. They posses a curved tail with anal papillae, a cloaca and a pair of penial setae.

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MCQ 281 Mark
How many chambers are there in fish heart:
  • ✓
    Two
  • B
    Three
  • C
    Four
  • D
    One
Answer
Correct option: A.
Two
All vertebrates have a muscular chambered heart.
Fishes have a two chambered heart with a single atrium and a ventricle.
In fishes, the heart pumps out deoxygenated blood which is oxygenated by the gills and supplied to the body parts from where deoxygenated blood is returned to the heart $($single circulation$).$
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MCQ 291 Mark
Phylum mollusca can be distinguished from other nonchordates by the presence of:
  • A
    Bilateral symmetry and exoskeleton.
  • B
    A mantle and gills.
  • C
    Shell and non$-$segmented body.
  • ✓
    A mantle and a non$-$segmented body.
Answer
Correct option: D.
A mantle and a non$-$segmented body.
Mollusca is the second largest animal phylum. The body of molluscs are covered by a calcareous shell and is unsegmented with a distinct head, mantle, muscular foot and visceral hump.
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MCQ 301 Mark
Which taxonomic term may be substituted for any rank in the classification?
  • A
    Class.
  • B
    Genus.
  • C
    Species.
  • ✓
    Taxon.
Answer
Correct option: D.
Taxon.
Each category, referred to as a unit of classification, in fact, represents a rank and is commonly termed as taxon $(pl.:$ taxa$).$
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MCQ 311 Mark
The distinguishing features of a Nematode are:
  • A
    Triploblastic, pseudocoelomate and flame cells.
  • B
    Triploblastic, flame cells and cylindrical body.
  • ✓
    Triploblastic, pseudocoelomate and cylindrical body.
  • D
    Diploblastic, pseudocoelomate and flame cells.
Answer
Correct option: C.
Triploblastic, pseudocoelomate and cylindrical body.
Nematode worms are extremely abundant; often, several hundred species, and as many as a million individuals, inhabit a square yard of soil.
Roundworms have a round body because they have a partial fluid$-$filled body cavity $($pseudocoelom$).$ This is one way that roundworms differ from flatworms. Another way is their complete digestive system. Roundworms have a tough covering of cuticle on the surface of their body.
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MCQ 321 Mark
Who introduced the system of scientific nomenclature of organisms:
  • A
    Robert Whittaker.
  • ✓
    Carolus Linnaeus.
  • C
    Robert Hooke.
  • D
    Ernst Haeckel.
Answer
Correct option: B.
Carolus Linnaeus.
It was Carolus Linnaeus who proposed binomial nomenclature of organisms.
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MCQ 331 Mark
The body of organisms has chitinous cell wall and is made up of hyphae and mycelium:
  • A
    Spirogyra.
  • ✓
    Rhizopus.
  • C
    Funaria.
  • D
    Riccia.
Answer
Correct option: B.
Rhizopus.
Fungi are filamentous. Their bodies consist of long, slender thread$-$like structures called hyphae. The network of hyphae is known as mycelium.
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MCQ 341 Mark
Which one is the most striking or $($common$)$ character of the vertebrates?
  • ✓
    Presence of notochord.
  • B
    Presence of triploblastic condition.
  • C
    Presence of gill pouches.
  • D
    Presence of coelom.
Answer
Correct option: A.
Presence of notochord.
Vertebrates are the most advanced group of animals and is also known as craniate. The characteristic features of vertebrate is presence of notochord. It is a long rod$-$like support structure that runs along back of the animal separating the nervous tissue from gut. The other feature of vertebrate are ,They have a true vertebral column and internal skeleton which allows completely different distribution of muscle attachment points that help in movement.Their body is bilaterally symmetrical, triploblastic, coelomic and segmented. In these animals, complex differentiation of body tissues and organs is present.
They are grouped in five classes:
  1. Pisces.
  2. Amphibia.
  3. Reptilia.
  4. Aves.
  5. Mammalia.
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MCQ 351 Mark
Similar characteristic among whale and crocodile is that.
  • A
    They both are cold-blooded organisms.
  • B
    They both are warm-blooded organisms.
  • C
    Their heart is $3-$chambered.
  • ✓
    Their heart is $4-$chambered.
Answer
Correct option: D.
Their heart is $4-$chambered.
Reptiles and mammals have four chambers in the heart.
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MCQ 361 Mark
Pteridophyta do not have:
  • A
    Root.
  • B
    Stem.
  • ✓
    Flowers.
  • D
    Leaves.
Answer
Correct option: C.
Flowers.
The plant body of pteridophytes is differentiated into roots, stem and leaves but they do not have flowers.
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MCQ 371 Mark
The system of nomenclature evolved by Linnaeus is:
  • A
    Mononomial.
  • B
    Vernacular.
  • ✓
    Binomial.
  • D
    Polynomal.
Answer
Correct option: C.
Binomial.
Binomial system of nomenclature of organisms evolved by Carolus Linnaeus in $1758.$
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MCQ 381 Mark
Elephantiasis disease of human beings is caused by:
  • ✓
    Wuchereria.
  • B
    Ascaris.
  • C
    Enterobius.
  • D
    Ancylostoma.
Answer
Correct option: A.
Wuchereria.
Elephantiasis disease of human beings is caused by a filarial worm, Wuchereria.
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MCQ 391 Mark
Sea cucumber is.
  • A
    Mollusc.
  • B
    Coelentrate.
  • ✓
    Echinoderm.
  • D
    Protochordate.
Answer
Correct option: C.
Echinoderm.
Sea cucumbers are echinoderms from the class Holothuroidea. They are marine animals with a leathery skin and an elongated body.
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MCQ 401 Mark
Amoeba belongs to kingdom:
  • A
    Monera.
  • ✓
    Protista.
  • C
    Fungi.
  • D
    Animalia.
Answer
Correct option: B.
Protista.
All single$-$celled eukaryotes are placed under Protista. Example$-$Amoeba.
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MCQ 411 Mark
The book Systema Naturae was written by:
  • ✓
    Linnaeus.
  • B
    Haeckel.
  • C
    Whittaker.
  • D
    Robert Brown.
Answer
Correct option: A.
Linnaeus.
Systema Naturae is work of Swedish botanist, zoologist and physician Carolus Linnaeus. He described his binomial system of classification in this book. Ernst Haeckel was a German biologist who gave three kingdom classification $(1866).$ Kingdom$-$Plantae, Kingdom$-$Protista, Kingdom$-$Animalia, Whittaker gave the five kingdom classification.
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MCQ 421 Mark
Metamerism is characteristic feature of:
  • A
    Chordata.
  • ✓
    Annelida.
  • C
    Mollusca.
  • D
    Nematoda.
Answer
Correct option: B.
Annelida.
Metamerism is a characteristic feature of Annelida.
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MCQ 431 Mark
Sex organs are unicellular and non$-$jacketed in:
  • ✓
    Algae.
  • B
    Bryophytes.
  • C
    Pteridophytes.
  • D
    Gymnosperms.
Answer
Correct option: A.
Algae.
Thallophyta $($algae$)$ has unicellular and non$-$jacketed sex organs.
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MCQ 441 Mark
Echidna and Platypus which lay eggs belongs to the class:
  • ✓
    Mammalia
  • B
    Reptilia
  • C
    Amphibia
  • D
    Aves
Answer
Correct option: A.
Mammalia
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MCQ 451 Mark
Which of the following classes has largest number of animals?
  • A
    Mammals.
  • B
    Pisces.
  • ✓
    Insect.
  • D
    Reptilian.
Answer
Correct option: C.
Insect.
Arthropoda is the largest phylum of Animalia which has insects.
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MCQ 461 Mark
The fish belonging to the phylum$-$Arthropoda is
  • ✓
    Cray fish.
  • B
    Devil fish.
  • C
    Jellyfish.
  • D
    Starfish.
Answer
Correct option: A.
Cray fish.
Cray fish belongs to arthropoda.
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MCQ 471 Mark
Skeleton is made entirely of cartilage in:
  • ✓
    Sharks.
  • B
    Tuna.
  • C
    Rohu.
  • D
    None of these.
Answer
Correct option: A.
Sharks.
Sharks belong to Cartilaginous fish; while others belong to the category of Bony fish.
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MCQ 481 Mark
Among the following given options, a pseudocoelomate organism is:
  • A
    Sea anemone.
  • B
    Liver fluke.
  • C
    Nereis.
  • ✓
    Wuchereria.
Answer
Correct option: D.
Wuchereria.
Nematodes are pseudocoelomate. The others are not nematodes and hence are not pseudocoelomate.
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MCQ 491 Mark
The type of symmetry found in coelenterates is.
  • A
    Asymmetry.
  • B
    Circular symmetry.
  • C
    Biradial symmetry.
  • ✓
    Radial symmetry.
Answer
Correct option: D.
Radial symmetry.
Coelentrata are radially symmetrical, as they have vertical symmetry around a central axis.
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MCQ 501 Mark
Which one of the following is cold$-$blodded animal?
  • A
    Birds.
  • B
    Monkey.
  • C
    Rat.
  • ✓
    Lizard.
Answer
Correct option: D.
Lizard.
Among the given options, Lizard is cold$-$blodded animal. Cold blooded animals maintain their body temperature by seeking environments that match the temperature they require.
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