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1. Mixture of yeast, sugar and water was taken in a test tube. After one hour, bubbles were observed in the mixture. The formation of bubbles was due to
A. Respiration
B. Photosynthesis
C. Digestion
D. Excretion
2. Binomial nomenclature usually consists of words/parts of
A. Five
B. Two
C. Three
D. One
3. In nomenclature,
A. The genus is written after the species.
B. Genus and species may be of the same name.
C. Both genus and species are printed in italics.
D. The first letter is capital in both genus and species.
4. Systematics refers to the study of
A. Nomenclature and identification of plants and animals
B. Different kinds of organisms and their classification
C. Diversity of kinds of organisms and their relationships
D. Identification and classification of plants and animals
5. A species was defined as ‘A population of interbreeding individuals which are reproductively isolated from other populations’ by
A. J. B. Lamarck
B. Charles Darwin
C. Ernst Mayr
D. Carolus Linnaeus
6. Binomial nomenclature consists of two names. These are
A. Family and genus
B. Genus and species
C. Species and variety
D. Order and family
7. Species become extinct most easily by
A. heavy rains
B. deforestation
C. sliding of hills
D. urbanization
8. The branch connected with nomenclature, identification and classification is
A. Ecology
B. Taxonomy
C. Physiology
D. Morphology
9. Binomial nomenclature was given by
A. Theophrastus
B. Linnaeus
C. R. H. Whittaker
D. Aristotle
10. A taxon is
A. A type of living organism
B. A group of related species
C. A taxonomic group of any ranking
D. A group of related families
11. All living organisms are linked to one another because
A. They have common genetic material of the same type.
B. They share common genetic material but to varying degrees.
C. All have common cellular organisation.
D. All of the above.
12. The biologist who has been called the ‘Darwin of the 20th century’ is
A. Whittaker
B. Diener
C. Ernst Mayr
D. Linnaeus
13. The maintenance of constant temperature inside the body is an example of
A. Homoeostasis
B. Negative feedback loop
C. Both A and B
D. None of these
14. The Father of Zoology is
A. John Ray
B. Buffon
C. Carlous Linnaeus
D. Aristotle
15. A group of interbreeding organisms is called a
A. Genus
B. Species
C. Family
D. Order
16. One of the following functions is exhibited only by green plants and not by animals.
A. Growth
B. Photosynthesis
C. Digestion
D. Response
17. The main cause of extinction of species from the tropics is
A. Soil erosion
B. Deforestation
C. Pollution
D. Afforestation
18. A taxon is a
A. Highest rank in classification
B. Unit of classification
C. Species
D. Group of closely related organisms
19. Binomial nomenclature means
A. One name comprising a generic name and a specific epithet
B. One name given by two scientists
C. Two names—one scientific and the other local
D. Two names—one latinised and the other of a person
20. Binomial nomenclature was first introduced in
A. Genera Plantarum
B. Historia Plantarum
C. Genera Animalium
D. Systema Naturae
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