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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3,130 questions · page 18 of 157
- A. Sporangia
- B. Conidiophores
- C. Sporangiophores
- D. Gametangia
Explanation: Answer is "Gametangia"Explanation: Means bodies containing gametes.Gametangia are specialized structures in fungi that produce gametes…
Correct answer: Gametangia- A. Zygospore
- B. Basidiospore
- C. Ascospores
- D. Conidiophore
Explanation: Answer is "Zygospore"Explanation: It is a diploid resistant body which comes into being by fusion of two haploid nuclei of different…
Correct answer: Zygospore- A. Asexual reproduction only
- B. Sexual reproduction only
- C. Both in sexual and asexual reproduction
- D. Both in fragmentation and budding
Explanation: Answer is "Sexual reproduction only"Explanation: Somatic body of fungus is haploid and it divides by mitosis to produce asexual…
Correct answer: Sexual reproduction only- A. Haploid Zygospores mitosis ⎯⎯ →⎯ Haploid spores
- B. Diploid Zygospores mitosis ⎯⎯ →⎯ Diploid spores
- C. Diploid Zygospores meiosis ⎯⎯ →⎯ Haploid spores
- D. Diploid Zygospores meiosis ⎯⎯ →⎯ Diploid spores
Explanation: Answer is "Diploid zygospore ⎯⎯→Haploid spores"Explanation: Diploid zygospore undergoes meiosis to produce four haploid spores, two of…
Correct answer: Diploid Zygospores meiosis ⎯⎯ →⎯ Haploid spores- A. Dikaryotic
- B. Heterokaryotic
- C. Diploid
- D. Meiosis
Explanation: Answer is "Meiosis"Explanation: Zygospore is a resistant dormant body which waits for arrival of favorable conditions and meiosis is…
Correct answer: Meiosis- A. Fungi, Saprobic bacteria
- B. Algae, Saprobic bacteria
- C. Fungi, Parasitic bacteria
- D. Algae, Parasitic bacteria
Explanation: Answer is "Fungi, saprobic bacteria"Explanation: Both of them are decomposers and recycler of nature.
Correct answer: Fungi, Saprobic bacteria347. Mycorrhizal fungi improve the growth of _ of all kinds of vascular plants through their association:
- A. 95%
- B. 90%
- C. 85%
- D. 80%
Explanation: Answer is "95%"Explanation: Symbiotic association is common in vascular plants.
Correct answer: 95%348. _ growing on rocks breaks them, setting the stage for other organisms during ecological succession.
- A. Ectomycorrhizae
- B. Endomycorrhizae
- C. Bacteria
- D. Lichen
Explanation: Lichens growing on rocks breaks them, setting the stage for other organisms during the course of ecological succession.Lichens are a…
Correct answer: Lichen- A. Lichens
- B. Mycorrhizae
- C. Rhizopus
- D. Penicillium
Explanation: Answer is "Lichens"Explanation: They are sensitive to air pollution particularly to SO2 and start dieing immediately if air becomes…
Correct answer: Lichens- A. Degrading pollutants
- B. Removing pollutants
- C. Degrading or removing environmental poisons
- D. Degrading or removing environmental poisons or pollutants by organisms
Explanation: Answer is "Degrading or removing environmental poisons/pollutants by organisms"Explanation: Degrading or removing environmental…
Correct answer: Degrading or removing environmental poisons or pollutants by organisms- A. Agaricus sp.
- B. Tuber sp.
- C. Morchella esculenta
- D. Agaricus sp., Morchella esculenta and Tuber sp.
Explanation: Answer is "Agaricus sp., Morchella esculenta and Tuber sp."Explanation: All of them are edible.
Correct answer: Agaricus sp., Morchella esculenta and Tuber sp.- A. Death cap/death angel
- B. Saccharomyces cerevisiae
- C. Jack - O Lantern
- D. Death cap/death angel and Jack - O Lantern
Explanation: Answer is "Death cap / death angel and Jack O Lantern"Explanation: These are poisonous fungi having strong neurotoxins.
Correct answer: Death cap/death angel and Jack - O Lantern- A. Penicillium
- B. Aspergillus
- C. Yeast
- D. Neurospora
Explanation: Answer is "Aspergillus"Explanation: It produces some highly proteolytic enzymes which breakdown the grain proteins
Correct answer: Aspergillus- A. Saccharomyces cerevisiae
- B. Penicillium griseofulvum
- C. Penicillium notatum
- D. Neurospora crassa
Explanation: Answer is "Penicillium notatum"Explanation: Historically it happened so.
Correct answer: Penicillium notatum- A. Lovastatin
- B. Cyclosporine
- C. Penicillium
- D. Griseofulvin
Explanation: Answer is "Cyclosporine"Explanation: It is an immunosupressent.
Correct answer: Cyclosporine- A. Lowering blood cholesterol
- B. Relief in migraine
- C. Preventing transplant rejection
- D. Inhibiting fungal growth
Explanation: Answer is "Lowering blood cholesterol"Explanation: It is an inhibitor of that enzyme which is associated with cholesterol anabolism.
Correct answer: Lowering blood cholesterol- A. Lowering blood cholesterol
- B. Relief in migraine
- C. Preventing transplant rejection
- D. Inhibiting fungal growth
Explanation: Answer is "Inhibiting fungal growth"Explanation: It makes the cells resistant to fungal infections.
Correct answer: Inhibiting fungal growth- A. Drug resistance in microorganisms
- B. Drug addiction in microorganisms
- C. Drug sensitivity in microorganisms
- D. Intoxication in human being
Explanation: Answer is "Drug resistance in microorganisms"Explanation: Widespread use of antibiotics and easy availability are causes of increased…
Correct answer: Drug resistance in microorganisms- A. Lichen
- B. Yeast
- C. Mycorrhizae
- D. Rhizopus
Explanation: Answer is "Yeast"Explanation: Various yeast species have been genetically engineered to produce various drugs; Saccharomyces cervisiae is…
Correct answer: Yeast- A. Aspergillus fumigatus
- B. Saccharomyces cerevisiae
- C. Penicillium notatum
- D. Penicillium griseofulvin
Explanation: Answer is "Saccharomyces cervisae"Explanation: Yeast artificial chromosomes (YACs) are genetically engineered chromosomes derived from the…
Correct answer: Saccharomyces cerevisiae