Free Biodiversity and Variety of Life MCQs with Answers
3,130 Biodiversity and Variety of Life MCQs from Biology, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Biological classification uses taxonomic ranks, binomial nomenclature and shared characteristics to organize life into kingdoms. The major groups include prokaryotes, protists, fungi, plants and animals, with comparisons based on cell type, cell wall, nutrition, body organization, reproduction and evolutionary relationships; prokaryotes lack a membrane-bound nucleus.
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- A. B and C
- B. C and D
- C. A and D
- D. A and B
Explanation: Photoperiod affects flowering and reproduction in plants. Binomial nomenclature system was given by Carolus Linnaeus.
Correct answer: A and D- A. The names are written in Latin and are italicised
- B. When written by hand the names are to be underlined
- C. Biological names can be written in any language
- D. The first word in a biological name represents the genus name and the second is a specific epithet
Explanation: Biological names are derived either from the Latin language or are Latinised.
Correct answer: Biological names can be written in any language- A. A museum has a collection of photographs of plants and animals.
- B. Key is a taxonomic aid for identification of specimens.
- C. Herbarium houses are dried, pressed , and preserved plant specimens.
- D. Botanical gardens have collection of living plants for reference.
Explanation: Museums have collections of preserved plant and animal specimens for study and reference.
Correct answer: A museum has a collection of photographs of plants and animals.- A. Family
- B. Order
- C. Division
- D. Genus
Explanation: Potato (Solanum tuberosum) and tomato (Lycopersicum esculentum) both belong to the family Solanaceae, which is commonly called the "potato…
Correct answer: Family- A. Musca domestica - a common house reptile
- B. Plasmodium falciparum - a protozoan pathogen causing the most serious type of malaria
- C. felis tigris - the Indian tiger, well protected in Gir forests
- D. E.coli - full name Entamoeba coli, a commonly occurring bacterium in the human intestine
Explanation: Plasmodium falciparum is a protozoan parasite, one of the species of Plasmodium that causes malaria in humans.
Correct answer: Plasmodium falciparum - a protozoan pathogen causing the most serious type of malaria- A. Tiger Tigris, species
- B. Cuttlefish mollusca, class
- C. Humans primata, family
- D. Housefly Musca, order
Explanation: The binomial nomenclature system of naming organisms using a two-part Latinized (or scientific) name was devised by the Swedish botanist…
Correct answer: Tiger Tigris, species- A. They provide a beautiful area for recreation
- B. One can observe tropical plants there
- C. They allow ex-situ conservation of germ plasm
- D. They provide the natural habitat for wild life.
Explanation: Ex-situ conservation means "offsite conservation". It is the process of protecting endangered species of plants and animals by removing…
Correct answer: They allow ex-situ conservation of germ plasm- A. Real basic units of classification
- B. The highest units of classification
- C. Artificial concept of human mind which cannot be defined in absolute terms
- D. Real units of classification devised by taxonomists
Explanation: Species are a natural population or group of natural populations of individuals that are genetically distinct and reproductively isolated…
Correct answer: Real basic units of classification- A. The classification of organisms based on broad morphological characters
- B. Delimiting various taxa of organisms and establishing their relationships
- C. The classification of organisms based on their evolutionary history and establishing their phylogeny on the totality of various parameters from all fields of studies
- D. Identification and arrangement of organisms on the basis of their cytological characteristics
Explanation: Biosystematics is the study of identification, nomenclature classification, and relationships among living beings.
Correct answer: The classification of organisms based on their evolutionary history and establishing their phylogeny on the totality of various parameters from all fields of studies- A. Species
- B. Division
- C. Class
- D. Family
Explanation: A taxonomic hierarchy is the sequence of arrangement of taxonomic categories in descending order during the classification of an organism.
Correct answer: Species- A. Order
- B. Taxonomy
- C. Species
- D. Genus
Explanation: Taxon refers to all the categories in the taxonomic hierarchy. It may be a kingdom, class, order, family, genus, or species.
Correct answer: Taxonomy- A. Binomial nomenclature
- B. Theory of biogenesis
- C. Discovery of microscope
- D. Discovery of blood circulation
Explanation: Binomial nomenclature of scientific naming was first given by C. Linnaeus (1735) in his book Systema Naturae and later in "Species…
Correct answer: Binomial nomenclature- A. Class-phylum-tribe-order-family-genus- species
- B. Division-class-family-tribe-order-genus- species
- C. Division-class-order-family-tribe-genus- species
- D. Phylum-order-class-tribe-family-genus- species
Explanation: According to Biosystematics, To construct the hierarchy of classification, one or more species are grouped into a genus, one or more…
Correct answer: Division-class-order-family-tribe-genus- species- A. Cuvier
- B. Haeckel
- C. Theophrastus
- D. Linnaeus
Explanation: The term phylum was coined in 1866 by Ernst Haeckel from the Greek phylon (φῦλον, "race, stock"), related to phyle (φυλή, "tribe, clan").
Correct answer: Haeckel- A. Species
- B. Genus
- C. Order
- D. Taxon
Explanation: A taxon (plural taxa) or taxonomic unit, is a name designating an organism or group of organisms.
Correct answer: Taxon- A. Species
- B. Kingdom
- C. Family
- D. Variety
Explanation: The basic unit or smallest taxon of taxonomy/classification is species.
Correct answer: Species- A. Mononomial
- B. Vernacular
- C. Binomial
- D. Polynomial
Explanation: Binomial nomenclature of scientific naming was first given by C. Linnaeus (1735) in his book Systema Naturae and later in "Species…
Correct answer: Binomial- A. Cholera and tetanus
- B. Typhoid and smallpox
- C. Tetanus and mumps
- D. Herpes and influenza
Explanation: Among all options, A is the correct one because both diseases are caused by bacteria.
Correct answer: Cholera and tetanus- A. Autoimmune disease
- B. Active immunity
- C. Allergic response
- D. Graft rejection
Explanation: Autoimmunity is a disorder of the body's defense mechanisms in which an immune response is elicited against its own tissues, which are…
Correct answer: Autoimmune disease- A. Haemocytes
- B. Serum globulins
- C. Fibrinogen in plasma
- D. Serum albumins
Explanation: Serum globulins are proteins that include gamma globulins(antibodies) and a variety of enzymes and carrier/transport proteins.
Correct answer: Serum globulinsBiodiversity and Variety of Life MCQs: common questions
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