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Diversity in Living Organisms

Description: Diversity in Living Organisms
Number of Questions: 45
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Tags: Diversity in Living Organisms Sum of the Angles of a Triangle Transversal and Parallel Lines Exterior Angle Property of Triangles Lines Parallel to Set of Parallel Lines
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Match the following:

 
a. Genus 1. An assemblage of families resembling one another in a few characters
b. Order 2. A principal taxonomic category that ranks above species and below family
c. Phylum 3. A principal taxonomic category that ranks above class and below kingdom, equivalent to division in botany
  1. a - 2, b - 3, c - 1

  2. a - 1, b - 2, c - 3

  3. a - 2, b - 1, c - 3

  4. a - 3, b - 1, c - 2

  5. a - 1, b - 3, c - 2


Correct Option: C
Explanation:

Genus is a principal taxonomic category that ranks above species and below family. Order is an assemblage of families resembling one another in a few characters. Phylum is a principal taxonomic category that ranks above class and below kingdom, equivalent to division in botany.

Who among the following coined the term 'Biological diversity' in 1986?

  1. Linnaeus

  2. Charles Darwin

  3. Walter G. Rosen

  4. E. H. Haeckel

  5. Aristotle


Correct Option: C
Explanation:

This is the correct option. Walter G. Rosen coined the term 'Biological diversity' in 1986.

Match the following:

 
a. Palaeontology 1. It is the study of geographical distribution of plants and animals.
b. Taxonomy 2. It studies evidences of the past life, in the form of fossils.
c. Biogeography 3. It is the study of the diversity and kind of organisms and the evolutionary relationships among them.
  1. a - 2, b - 1, c - 3

  2. a - 1, b - 2, c - 3

  3. a - 3, b - 2, c - 1

  4. a - 2, b - 3, c - 1

  5. a - 1, b - 3, c - 2


Correct Option: D
Explanation:

This is the correct option. Palaeontology studies evidences of the past life, in the form of fossils. Taxonomy is the study of the diversity and kind of organisms and the evolutionary relationships among them. Biogeography is the study of geographical distribution of plants and animals.

Match the following:

 
a. Porcupine 1. Funambulus
b. Squirrel 2. Macaca
c. Monkey 3. Hystrix
  1. a - 3, b - 2, c - 1

  2. a - 3, b - 1, c - 2

  3. a - 1, b - 3, c - 2

  4. a - 1, b - 2, c - 3

  5. a - 2, b - 1, c - 3


Correct Option: B
Explanation:

This is the correct option. The scientific name of porcupine is Hystrix. The scientific name of squirrel is Funambulus. The scientific name of monkey is Macaca.

Which of the following Darwin's theories, according to Professor Ernst Mayr, states that 'the evolutionary process produces new species by splitting and transformation of older ones'?

  1. Theory of multiplication of species

  2. Theory of perpetual change

  3. Theory of common descent

  4. Theory of gradualism

  5. Theory of natural selection


Correct Option: A
Explanation:

This is the correct option as the theory of multiplication of species states that the evolutionary process produces new species by splitting and transformation of older ones.

Who among the following proposed the fourth kingdom 'Monera' and the fifth kingdom 'Fungi' in 1959?

  1. Robert H. Whittaker

  2. Carl von Linnaeus

  3. Charles Darwin

  4. E. H. Haeckel

  5. Aristotle


Correct Option: A
Explanation:

This is the correct option. Robert H. Whittaker proposed the fourth kingdom 'Monera' and the fifth kingdom 'Fungi' in 1959.

Which of the following statements is/are false?

a. The kingdom Protoctista is a collection of all the eukaryotic organisms that do not fit neatly into the other three eukaryotic kingdoms. b. A group of organisms that does not fit neatly into any classification scheme are the viruses. c. Viruses have a cellular structure and can only reproduce by invading the living cells.

  1. Only a

  2. Only a and b

  3. Only b

  4. Only b and c

  5. Only c


Correct Option: E
Explanation:

This is the correct option as this statement is false. Viruses do not have a cellular structure and can only reproduce by invading the living cells.

To which of the following kingdoms does Amoeba belong?

  1. Animalia

  2. Protista

  3. Plantae

  4. Monera

  5. Fungi


Correct Option: B
Explanation:

This is the correct option. Amoeba belongs to kingdom Protista.

Which of the following is not a type of cyanobacteria?

  1. Oscillatoria

  2. Pseudomonas

  3. Anabaena

  4. Spirulina

  5. Nostoc


Correct Option: B
Explanation:

This is the correct option. Pseudomonas are a bacteria of the group Pseudomonas, and are not cyanobacteria.

Which of the following is not a name of common bacterial form?

  1. Bacillus

  2. Spirillium

  3. Streptobacillus

  4. Teracoccus

  5. Diatom


Correct Option: E
Explanation:

This is the correct option as diatom is not a name of common bacterial form. It is a unicellular algae.

Which of the following is not an example of a lichen?

  1. Rhizocarbon

  2. Parmelia

  3. Aspergillus

  4. Collema

  5. Usnea


Correct Option: C
Explanation:

This is the correct option. Aspergillus is a fungus, and not a lichen.

Which of the following is not an example of a bryophyte?

  1. Riccia

  2. Marchantia

  3. Fucus

  4. Anthoceros

  5. Funaria


Correct Option: C
Explanation:

Fucus is not an example of a bryophyte. It is an alga.

The plants of which division produce seeds that are naked and are not enclosed within the fruit?

  1. Gymnospermae

  2. Angiospermae

  3. Pteridophyta

  4. Bryophyta

  5. Algae


Correct Option: A
Explanation:

This is the correct option. Gymnospermae produce seeds that are naked and are not enclosed within the fruit.

Which of the following statements is/are false?

a. Bryophytes are vascular plants. b. In Pteridophytes, the gametophyte is small and independent. c. In Bryophytes, fixation of plant body is carried out by rhizoids.

  1. Only a

  2. Only a and b

  3. Only b

  4. Only b and c

  5. Only c


Correct Option: A
Explanation:

This is the correct option as this statement is false. Pteriodophytes, and not Bryophytes are vascular plants.

Which of the following plants does not belong to the division Gymnospermae?

  1. Cycas

  2. Pinus

  3. Cedrus

  4. Ginkgo

  5. Equisetum


Correct Option: E
Explanation:

This is the correct option. Equisetum belongs to the division Pteridophyta.

Match the following: Groups|Names of eubacteria| |a. Enterobacteria|1. Escherichia coli| |b. Spirochaetes|2. Nitrobacter| |c. Chaemoautotrophs|3. Treponema|

  1. a - 2, b - 3, c - 1

  2. a - 3, b - 1, c - 2

  3. a - 2, b - 1, c - 3

  4. a - 1, b - 2, c - 3

  5. a - 1, b - 3, c - 2


Correct Option: E
Explanation:

This is the correct option. An example of eubacteria of group Enterobacteria is Escherichia coli. An example of eubacteria of group spirochaetes is Treponema. An example of eubacteria of group chaemoautotrophs is Nitrobacter.

Match the following:

   
Taxa Class Species
a. Wheat 1. Mamalia p. aestivum
b. Paramecium 2. Monocotyledonae q. sapiens
c. Human being 3. Ciliata r. caudatum
  1. a - 2 - p, b - 3 - q, c - 1 - r

  2. a - 2 - p, b - 3 - r, c - 1 - q

  3. a - 2 - r, b - 3 - p, c - 1 - q

  4. c - 2 - p, a - 3 - r, b - 1 - q

  5. a - 1 - p, b - 3 - r, c - 2 - q


Correct Option: B
Explanation:

This is the correct option. Wheat belongs to Monocotyledonae class and aestivum species. Paramecium belongs to Ciliata class and caudatum species. Human beings belong to Mamalia class and sapiens species.

Which of the following does not belong to phylum Ctenophora?

  1. Pleurobrachia

  2. Cestum

  3. Ctenoplana

  4. Dugesia

  5. Beroe


Correct Option: D
Explanation:

This is the correct option. Dugesia belongs to phylum Platyhelminthes.

Which of the following causes elephantiasis?

  1. Ascaris

  2. Wuchereria bancrofti

  3. Ancylostoma

  4. Enterobius

  5. Dugesia


Correct Option: B
Explanation:

This is the correct option. Wuchereria bancrofti causes elephantiasis, in which enlargement of limbs, scrotum and mammae of humans takes place due to infection.

Which of the following does not belong to phylum Annelida?

  1. Sandworm

  2. Sea mouse

  3. Locust

  4. Earthworm

  5. Indian cattle leech


Correct Option: C
Explanation:

This is the correct option as Locust does not belong to phylum Annelida. It belongs to phylum Arthropoda.

Which of the following is not a characteristic of Platyhelminthes?

  1. They are cylindrical in form and are called roundworms.

  2. They are acoelomate.

  3. They have an incomplete digestive system.

  4. They are hermaphrodites.

  5. Circulatory system, respiratory system and skeleton are absent.


Correct Option: A
Explanation:

This is the correct option as this is not a characteristic of Platyhelminthes. Platyhelminthes are called flatworms. Aschelminthes are called roundworms.

Which of the following is a characteristics of Angiosperms?

  1. Sporophylls are aggregated to form cones.

  2. The microspores and megaspores are produced by male and female cones.

  3. Vascular tissues such as xylem lacks vessels and pholem lacks companion cells.

  4. The ovules are not contained within an ovary.

  5. Endosperm cells are triploid.


Correct Option: E
Explanation:

This is the correct option as this is a characteristics of Angiosperms.

Which of the following is not a class of phylum Echinodermata?

  1. Cephalopoda

  2. Crinoidea

  3. Holothuroidea

  4. Echinoidea

  5. Asteroidea


Correct Option: A
Explanation:

This is the correct option. Cephalopoda is not a class of phylum Echinodermata. It is a class of phylum Mollusca.

Which of the following is not an example of Mastigophora which is a class phylum Protozoa?

  1. Euglena

  2. Noctiluca

  3. Trypanosoma

  4. Giardia

  5. Plasmodium


Correct Option: E
Explanation:

This is the correct option. Plasmodium causes malaria and belongs to the class Sporozoa.

Match the following:

 
a. Hydrozoa 1. Their life history lacks a polypoid form and only has a medusoid form.
b. Scyphozoa 2. Their life history includes both polypoid and medusoid forms.
c. Anthozoa 3. Their life history has only polypoid form, the medusoid forms are absent.
  1. a - 2, b - 1, c - 3

  2. a - 2, b - 3, c - 1

  3. a - 1, b - 3, c - 2

  4. a - 1, b - 2, c - 3

  5. a - 3, b - 1, c - 2


Correct Option: A
Explanation:

This is the correct option. Hydrozoa's life history includes both polypoid and medusoid forms. Scyphozoa's life history lacks polypoid phase and has only medusoid form. Anthozoa's life history has only polypoid form, the medusoid forms are absent.

Which of the following is not a class of phylum Mollusca?

  1. Polyplacophora

  2. Gastropoda

  3. Scaphopoda

  4. Pelecypoda

  5. Arachnida


Correct Option: E
Explanation:

This is the correct option. Arachnida does not belong to phylum Mollusca. It belongs to Phylum Arthropoda.

Which of the following is a characteristic of Annelids?

  1. Their appendages are jointed.

  2. They have a small coelom.

  3. Annelids have a closed circulatory system.

  4. The sensory system of Annelids is well developed.

  5. Annelids locomotory organs are legs and wings.


Correct Option: C
Explanation:

This is the correct option. Annelids have a closed circulatory system. Their blood flows inside blood vessels.

Which of the following belongs to phylum Hemichordata?

  1. Brittle star

  2. Sea pentagon

  3. Tongue worm

  4. Star fish

  5. Devil fish


Correct Option: C
Explanation:

This is the correct option. Tongue worm, also known as Balanoglossus, belongs to phylum Hemichordata.

Which of the following does not belong to phylum Porifera?

  1. Leucosolenia

  2. Sycon

  3. Euplectella

  4. Hyalonema

  5. Hydra


Correct Option: E
Explanation:

This is the correct option. Hydra belongs to phylum Cnidaria.

Which of the following is not a characteristic of Chordates?

  1. Notochord is present in them at some of their developmental stage.

  2. Their central nervous system is hollow and dorsal.

  3. Heart is always present and it is ventral in position.

  4. The circulatory system is closed type.

  5. A post Anal tail is is absent.


Correct Option: E
Explanation:

This is the correct option as Post anal tail is present in them and hence it is not a characteristic of Chordates.

Which of the following is a characteristic of bony fishes?

  1. Bony fishes contain 5 - 7 pairs of gill slits.

  2. Their mouth is ventral in position.

  3. They have a bony endoskeleton.

  4. Fishes are covered with Placoid scales.

  5. An operculum is absent in them.


Correct Option: C
Explanation:

This is the correct option as bony fishes do have a bony endoskeleton.

Which of the following is not an animal of class Amphibia?

  1. Ichthyophis

  2. Necturus

  3. Bull frog

  4. Toad

  5. Lung fish


Correct Option: E
Explanation:

Lung fish, also known as Protopterus, is not an animal of class Amphibia. It is of class Osteichthyes.

Which of the following does not belong to class Chondrichthyes?

  1. Bdellostoma

  2. Scolioden

  3. Sphyrna

  4. Torpedo

  5. Trygon


Correct Option: A
Explanation:

This is the correct option. Bdellostoma, also known as hag fish, belongs to class Cyclostomata.

Which of the following is a characteristic of animals of class Aves?

  1. Forelimbs are modified into wings.

  2. Feathers and scales are absent.

  3. Skin bears a number of sweat and oil glands.

  4. Females have mammary glands for feeding the young.

  5. Bones are not hollow or pneumatic.


Correct Option: A
Explanation:

This is the correct option as this is a characteristic of animals of class Aves.

Which of the following is not an animal of class Aves?

  1. Gallus

  2. Passer

  3. Corvus

  4. Gavialis

  5. Columba


Correct Option: D
Explanation:

This is the correct option. Gavialis belongs to class Reptilia.

Which of the following is not a characteristic of Amphibia?

  1. The skin of Amphibia is glandular, smooth and moist.

  2. Horny scales are present over their body surface.

  3. Their digits do not possess claws.

  4. Amphibia's heart is a three-chambered heart.

  5. Fertilization is external.


Correct Option: B
Explanation:

This is the correct option as this is not a characteristics of Amphibia. Scales are not present in Amphibians.

Which of the following statements is/are false?

a. The seeds produced by dicots have only one fleshy leave, the cotyledon. b. The root system of dicots has a prominent tap root. c. The flowers of dicots have five or multiple of five petals.

  1. Only a

  2. Only a and b

  3. Only b

  4. Only b and c

  5. Only c


Correct Option: A
Explanation:

This is the correct option as this statement is false. The seeds produced by dicots have embryos with two fleshy leaves, the cotyledon.

Which of the following is a dicot plant?

  1. Maize

  2. Wheat

  3. Pea

  4. Rice

  5. Onion


Correct Option: C
Explanation:

This is the correct option. Pea is a dicot plant. The root system of pea plant has a prominent tap root.

Which of the following is not a characteristics of plants?

  1. Plants have autotrophic mode of nutrition.

  2. Reserve food of plants is glycogen and fat.

  3. Plants do not contain sense organs and nervous system.

  4. Response to external stimuli is slow.

  5. Plants do not contain excretory organs.


Correct Option: B
Explanation:

This is the correct option as this is not a characteristic of plants. Reserve food of plants is not glycogen and fat, but is starch and oil.

Which of the following is not a characteristic of phylum Porifera?

  1. They have a cellular level of organisation.

  2. Digestion is intracellular.

  3. Muscles and nerve cells are absent.

  4. Appendages are present in poriferans in the form of tentacles.

  5. Poriferans contain the special cells called collar cells or choanocytes.


Correct Option: D
Explanation:

This is the correct option as appendages are absent in poriferans.

Match the following:

a. Acoelomates 1. They have a true body cavity or coelom which originates from the mesoderm and is lined by epithelial cells of mesodermal origin.
b. Pseudocoelomates 2. They do not have a body cavity, because the space between the body wall and digestive tract is filled with parenchymatous tisue.
c. Coelomates 3. They have a cavity between the body wall and digestive tract, but this cavity does not arise from the mesoderm and is not lined by epithelial cells.
  1. a - 2, b - 1, c - 3

  2. a - 3, b - 2, c - 1

  3. a - 2, b - 3, c - 1

  4. a - 1, b - 3, c - 2

  5. a - 1, b - 2, c - 3


Correct Option: C
Explanation:

This is the correct option. Acoelomates do not have a body cavity, because the space between the body wall and digestive tract is filled with parenchymatous tisue. Pseudocoelomates have a cavity between the body wall and digestive tract, but this cavity does not arise from the mesoderm and is not lined by epithelial cells. Coelomates have a true body cavity or coelom which originates from the mesoderm and is lined by epithelial cells of mesodermal origin.

Which of the following is the term given to the science of naming an organism?

  1. Taxonomy

  2. Classification

  3. Nomenclature

  4. Identification

  5. None of these


Correct Option: C
Explanation:

This is the correct option as the science of naming an organism is called nomenclature.

Which of the following is not a fungus?

  1. Vibrio

  2. Rhizopus

  3. Saccharomyces

  4. Neurospora

  5. Morchella


Correct Option: A
Explanation:

This is the correct option. Vibrio is not a fungus. It is a form of bacteria.

Which of the following is not an example of Ciliata, which is a class phylum Protozoa?

  1. Paramecium

  2. Ephelota

  3. Opalina

  4. Nyctotherus

  5. Vorticella


Correct Option: B
Explanation:

This is the correct option. Ephelota belongs to class Suctoria, and is not an example of Ciliata, a class phylum Protozoa.

Match the following:

a. Kingdom Monera 1. Unicellular eukaryotic organisms
b. Kingdom Protista 2. Eukaryotic multicellular organisms
c. Kingdom Fungi 3. Prokaryotic bacteria and blue-green algae
  1. a - 3, b - 1, c - 2

  2. a - 3, b - 2, c - 1

  3. a - 1, b - 2, c - 3

  4. a - 1, b - 3, c - 2

  5. a - 2, b - 1, c - 3


Correct Option: A
Explanation:

Kingdom Monera consists of prokaryotic bacteria and blue-green algae. Kingdom Protista consists of unicellular eukaryotic organisms. Kingdom Fungi consists of eukaryotic multicellular organisms.

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