Biosystematics aims at
1. the classification of organisms based on their evolutionary history and establishing their phylogeny on the totality of various parameters from all fields of studies
2. identification and arrangement of organism on the basis of their cytological characteristics
3. the classification of organisms based on broad morphological characters
4. delimiting various taxa of organisms and establishing their relationships

Subtopic:  Systematics & Type study |
 61%
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The branch of biology that deals with the relationships of different groups of organisms and examines their natural variation and relationships is known as:
1. Cladistics 2. Systematics
3. Taxonomy 4. Identification
Subtopic:  Systematics & Type study |
 63%
From NCERT
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Practical purpose of taxonomy or classification is to:
1. facilitate the identification of unknown species
2. explain the origin of organisms
3. know the evolutionary history
4. identify medicinal plants

Subtopic:  Systematics & Type study |
 74%
From NCERT
AIPMT - 1999

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A hierarchy is an arrangement of items that are represented as being "above", "below", or "at the same level as" one another. Select the correct ascending order of taxonomic hierarchy?
1. Species → Genus → Family → Order → Class → Division → Kingdom
2. Species → Genus → Family → Class → Order → Division → Kingdom
3. Species → Genus → Order → Family → Class → Division → Kingdom
4. Genus → Species → Family → Order → Class → Kingdom → Division
Subtopic:  Systematics & Type study |
 90%
From NCERT
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The currently accepted definition of biological species was pioneered by:

1. John Ray 2. G. G. Simpson
3. Ernst Mayr 4. Ernst Haeckel
Subtopic:  Systematics & Type study |
 70%

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