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Test: Classification of Organism - UPSC MCQ


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10 Questions MCQ Test - Test: Classification of Organism

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Test: Classification of Organism - Question 1

What is the primary criterion used to classify organisms into different biological kingdoms?

Detailed Solution for Test: Classification of Organism - Question 1
The primary criterion used to classify organisms into different biological kingdoms is their cell type. Organisms are categorized as either eukaryotes, which have cells with a membrane-bound nucleus, or prokaryotes, which lack a membrane-bound nucleus. This fundamental difference in cell structure is a key factor in determining the kingdom to which an organism belongs.
Test: Classification of Organism - Question 2

Which kingdom includes organisms that obtain nutrients by decomposing organic matter in their environment?

Detailed Solution for Test: Classification of Organism - Question 2
The Fungi Kingdom includes organisms that obtain nutrients by decomposing organic matter in their environment. This unique mode of nutrition distinguishes fungi from plants and animals.
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Test: Classification of Organism - Question 3

Which kingdom encompasses both vertebrates and invertebrates?

Detailed Solution for Test: Classification of Organism - Question 3
The Animal Kingdom encompasses both vertebrates (animals with a backbone) and invertebrates (animals without a backbone). This kingdom is characterized by multicellular, heterotrophic organisms that can move and engage in sexual reproduction.
Test: Classification of Organism - Question 4
Which kingdom comprises a diverse group of eukaryotic microorganisms, some of which are responsible for causing diseases like malaria?
Detailed Solution for Test: Classification of Organism - Question 4
The Protist Kingdom comprises a diverse group of eukaryotic microorganisms, some of which are responsible for causing diseases like malaria. These organisms can be unicellular or form colonies and exhibit various nutritional strategies.
Test: Classification of Organism - Question 5
What is the primary method of reproduction in the Plant Kingdom?
Detailed Solution for Test: Classification of Organism - Question 5
The primary method of reproduction in the Plant Kingdom is sexual reproduction, which involves the fusion of gametes from two parent organisms. However, plants can also reproduce asexually through methods like budding and vegetative propagation.
Test: Classification of Organism - Question 6
Which kingdom represents prokaryotic organisms that lack a membrane-bound nucleus?
Detailed Solution for Test: Classification of Organism - Question 6
The Monera Kingdom represents prokaryotic organisms, including bacteria and archaea, that lack a membrane-bound nucleus. These organisms are unicellular and have a wide range of metabolic capabilities.
Test: Classification of Organism - Question 7
In which kingdom do organisms exhibit absorptive nutrition and obtain nutrients by decomposing organic matter?
Detailed Solution for Test: Classification of Organism - Question 7
Organisms in the Fungi Kingdom exhibit absorptive nutrition and obtain nutrients by decomposing organic matter in their environment. This is a defining characteristic of fungi.
Test: Classification of Organism - Question 8
What is the main method of nutrition in the Animal Kingdom?
Detailed Solution for Test: Classification of Organism - Question 8
The main method of nutrition in the Animal Kingdom is heterotrophic, meaning that animals rely on consuming other living things for nutrition.
Test: Classification of Organism - Question 9
Which kingdom plays a crucial role in sustaining life on Earth by releasing oxygen into the atmosphere through photosynthesis?
Detailed Solution for Test: Classification of Organism - Question 9
The Plant Kingdom plays a crucial role in sustaining life on Earth by releasing oxygen into the atmosphere through the process of photosynthesis. Plants are autotrophic organisms that produce oxygen as a byproduct of their metabolic processes.
Test: Classification of Organism - Question 10
Which kingdom comprises organisms capable of independent locomotion?
Detailed Solution for Test: Classification of Organism - Question 10
The Animal Kingdom comprises organisms capable of independent locomotion. This ability to move is a distinguishing feature of animals within this kingdom.
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