Q. No.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
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
Species are considered as
1. artificial concept of human mind which cannot be defined in absolute terms
2. real units of classification devised by taxonomists
3. real basic units of classification
4. the lowest units of classification
One of the most important functions of botanical gardens is that
1. one can observe tropical plants there
2. they allow ex situ conservation of germplasm
3. they provide the natural habitat for wildlife
4. they provide a beautiful area for recreation
Two plants can be conclusively said to belong to the same species if they
1. can reproduce freely with each other and form seeds
2. have more than 90 percent similar genes
3. look similar and possess identical secondary metabolites
4. have same number of chromosomes
ICBN stands for
1. Indian Congress of Biological Name
2. International Code for Botanical Nomenclature
3. International Congress of Biological Name
4. Indian Code of Botanical Nomenclature
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Which one of the following is not a correct statement?
1. Botanical gardens have collection of living plants for reference
2. A museum has collection of photographs of plants and animals
3. Key is taxonomic aid for identification of specimens
4. herbarium houses dried, pressed and preserved plant specimens
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Which of the following is less general in characters as compared to genus?
| 1. | Species | 2. | Division |
| 3. | Class | 4. | Family |
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Genus represents
1. An individual plant or animal
2. A collection of plants or animals
3. Group of closely related species of plants or animals
4. None of these
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Taxonomic key is one of the taxonomic tools in the identification and classification of plants and animals. It is used in the preparation of
1. Monographs
2. Flora
3. Both 1 and 2
4. None of the above
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Maintenance of a constant internal environment in spite of an ever changing external environment by living organisms is called:
1. Hemostasis
2. Thermoregulation
3. Osmoregulation
4. Homeostasis
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