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. Plants
- B. Animals
- C. Protists
- D. Rest of the eukaryotes
Explanation: Answer is "Rest of the eukaryotes"Explanation: With respect to nuclear mitosis and molecular data fungi resemble none of the other…
Correct answer: Rest of the eukaryotes- A. Mushrooms
- B. Morels
- C. Smuts
- D. Truffles
Explanation: Answer is "Smuts"Explanation: Smuts are such fungi which are pathogenic to cereal crops particularly to wheat, barley, oat, maize etc.
Correct answer: Smuts- A. Blood stream
- B. Nervous system
- C. Organs other than lungs
- D. Blood stream and then to other organs
Explanation: Answer is "Blood stream and then to other organs"Explanation: Because systemic fungus is difficult to be controlled and eradicated.
Correct answer: Blood stream and then to other organs- A. Aspergillus fumigatus
- B. Aspergillus albicans
- C. Aspergillus notatum
- D. Penicillium notatum
Explanation: Answer is "Aspergillus fumigatus"Explanation: As the name indicates
Correct answer: Aspergillus fumigatus1645. Fungus causes:
- A. Root rot in cotton
- B. Scab in cotton
- C. Brown rot in cotton
- D. Ergot in cotton
Explanation: Answer is "Root rot in cotton"Explanation:
Correct answer: Root rot in cotton- A. Wheat, corn, rice
- B. Peaches, Plums, Apricots
- C. Sugarcane, Potato, Cotton
- D. Cotton, Apple, Rye
Explanation: Answer is "Wheat, Corn, Rice"Explanation: These are obligate parasites of cereal crops i.e. members of family poaceae.
Correct answer: Wheat, corn, rice- A. Pink bread mold
- B. Blue bread mold
- C. Black bread mold
- D. Pink bread mold called Neurospora
Explanation: Answer is "Pink bread mold called Neurospora"Explanation: Neurospora Crassa is a model organism because it is easy to grow and have…
Correct answer: Pink bread mold called Neurospora- A. Lovastatin
- B. Cyclosporine
- C. Ergotine
- D. Griseofulvin
Explanation: Answer is "Ergotine"Explanation: It is also called ergotamine. It have structural similarity with neurotransmitters such as serotonin…
Correct answer: Ergotine- A. Saccharomyces cerevisiae
- B. Neurospora
- C. Penicillium notatum
- D. Asperillus fumigatus
Explanation: Answer is "Saccharomyces cervisiae"Explanation: It is the scientific name of baker's or brewer's yeast which acts as fermenting agent in…
Correct answer: Saccharomyces cerevisiae- A. Rapid generation
- B. Rapid increasing pool of genetic information
- C. Rapidly increasing pool of biochemical information
- D. Rapid generation and rapidly increasing pool of genetic and biochemical information
Explanation: Answer is "Rapid generation and rapidly increasing pool of genetic and biochemical information"Explanation: It has short generation time…
Correct answer: Rapid generation and rapidly increasing pool of genetic and biochemical information- A. Arctic regions
- B. Boreal regions
- C. Sub-arctic regions
- D. Arctic, Sub-arctic, and boreal regions
Explanation: Answer is "Arctic, subarctic and boreal regions"Explanation: Reindeers are found in these areas and consume the fruticose lichen (Cladonia…
Correct answer: Arctic, Sub-arctic, and boreal regions- A. Bioabsorption
- B. Environmental degradation
- C. Bioremediation
- D. Biological control
Explanation: Bioremediation fungi are used to degrade and remove pollutants from the environment.
Correct answer: Bioremediation- A. Prokaryotae
- B. Animalia
- C. Protoctista
- D. Fungi
Explanation: The kingdom Fungi is the correct answer. Fungi are eukaryotic organisms that primarily obtain their nutrition through an absorptive mode…
Correct answer: Fungi- A. B, C and F only
- B. A, C and E only
- C. A, D and E only
- D. B, D and E only
Explanation: The environmental conditions essential for the optimum growth of Mucor on a piece of bread typically include: A.
Correct answer: A, D and E only- A. Spirogyra
- B. Ulothrix
- C. Rhizopus
- D. None of these.
Explanation: The specialized structure called "columella" is found in the sporangium of certain fungi, specifically in the genus Rhizopus.
Correct answer: Rhizopus- A. Telia on wheat leaves.
- B. Aecia on barberry leaves.
- C. Pycnia on barberry leaves.
- D. Aecia on wheat leaves.
Explanation: Puccinia forms uredia and telia on wheat leaves (a):This option is correct.
Correct answer: Telia on wheat leaves.- A. Albugo candida
- B. Puccinia graminis tritici
- C. Melampsora lini
- D. Claviceps purpurea.
Explanation: Let's explain each option individually:a) Albugo candidaAlbugo candida, also known as white rust, is a fungal-like organism belonging to…
Correct answer: Puccinia graminis tritici- A. Morchella esculenta
- B. Amanita muscaria
- C. Neurospora sp.
- D. Ustilago sp.
Explanation: Amanita muscaria is a member of Class Basidiomycetes. It is a poisonous mushroom and has hallucinogenic properties.
Correct answer: Amanita muscaria- A. Nostoc
- B. Glomus
- C. Agaricus
- D. Rhizobium
Explanation: The genus Glomus forms endomycorrhiza, symbiotic associations with plants.
Correct answer: Glomus- A. Aspergillus niger
- B. Rhizopus nigricans
- C. Lactobacillus bulgaris
- D. Penicillium citrinum
Explanation: Citric acid is obtained through the fermentation carried out by Aspergillus niger on sugary syrups.
Correct answer: Aspergillus niger