Biology · Science General
Diversity in Living Organisms
3,829 Questions
The diversity in living organisms deals with the classification of life forms into various kingdoms and phyla. This topic covers specific traits of bacteria, animal body cavities, and structural adaptations for survival. These fundamentals are crucial for biology sections in medical entrance and state board exams.
Animal phyla characteristicsBacteria and flagellaBiological adaptationsKingdom Animalia classificationBody cavity typesExtinct organism subphylaJawless animals identification
Diversity in Living Organisms Questions
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viruses
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mycoplasmas
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bacteria
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archaea
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cyanobacteria
D
Correct answer
Explanation
Archaeal Richmond Mine acidophilic nanoorganisms (ARMAN) are archaea which were discovered in 2006 and are some of the smallest organisms known. They occasionally connect with other archaeal cells in acid mine drainage biofilms.
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amoeba
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euglena
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bacteria
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yeast
C
Correct answer
Explanation
It is a multicellular organism.
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This brown algae is found in marine habitats.
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Dominant pigment found in this is r-phycoerythrin.
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Food is stored as complex carbohydrates; in the form of laminarin or mannitol.
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The plant body has a stalk, stipe and leaf-like fond.
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Asexual reproduction takes place by biflagellate zoospores.
B
Correct answer
Explanation
Yes, it is the correct answer as this statement is wrong. Chlorophyll a, c, carotenoids and xanthophyll are the pigments found in phaeophyceae.
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Algae are simple and thalloid organisms
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They are mainly aquatic organisms and live in freshwater and marine habitats
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They bear chlorophyll
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Some algae occur in association with fungi (as lichen)
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None of these
E
Correct answer
Explanation
Yes, it is the correct answer, as all the statements given are true.
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mycoplasma
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bacillus substilis
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coccus
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streptococcus
A
Correct answer
Explanation
One of the distinctive characteristics of most bacteria and other prokaryotes is a unique cell wall. The only bacterium that has no cell wall is mycoplasma.
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monocystis
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plasmodium
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Both (1) and (2)
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None of these
C
Correct answer
Explanation
Acellular protists are both Plasmodium and Monocystis.
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shell
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cover
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cyst
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All of the above
C
Correct answer
Explanation
Hard covering of amoeba is known as cyst. It acts as a protective shield to overcome adverse circumstances.
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Monera
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Fungi
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Protista
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Plantae
A
Correct answer
Explanation
Monera is the single kingdom which can include blue-green algae, nitrogen-fixing bacteria and methanogenic archaebacteria.
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Cyanobacteria
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Heterocysts
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Eubacteria
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Mycoplasmas
D
Correct answer
Explanation
Mycoplasmas are the organisms that completely lack cell wall. They are the smallest living cells known and can survive without oxygen.
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They are photosynthetic autotrophic bacteria.
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They are chemosynthetic autotrophic bacteria.
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They are heterotrophic bacteria.
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They are considered as archaebacteria.
A
Correct answer
Explanation
They are unicellular, colonial or filamentous, marine or terrestrial algae.
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By using pseudopodia
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By using cilia
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By using tentacles
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They do not move
C
Correct answer
Explanation
Coelenterates locomote with the help of tentacles.
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Euglena
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Paramecium
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Hydra
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Earthworm
C
Correct answer
Explanation
The inner muscular part of epitheliomuscular cells is provided with contractile fibrils.
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Organisms which are not differentiated into sexes
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Organisms which cannot move
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Organisms which move by pseudopodia
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Organisms which have tentacles as locomotory organs
B
Correct answer
Explanation
Organisms which cannot move are called sessile organisms. They remain fixed at a place.
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Acicular
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Ovate
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Cordate
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Rotund
A
Correct answer
Explanation
The lamina is needle shaped to prevent deposition of snow on it.
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scoliodon
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salamander
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viper snake
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squirrel
B
Correct answer
Explanation
Biconvex and nucleated red blood cells, heart with more than two perfect chambers, closed type of circulation and oviparity are all features of salamander.