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. Species, genus, family, order, class, phylum
- B. Order, family, class, phylum, kingdom
- C. Species, genus, family, class, order, phylum
- D. Species, genus, order, family, class, phylum
Explanation: The correct hierarchy of various taxa in biological classification is:Species, genus, family, order, class, phylumExplanation:1.
Correct answer: Species, genus, family, order, class, phylum- A. Prototheria
- B. Metatheria.
- C. Eutheria.
- D. All of these.
Explanation: c) Eutheria: This is the correct option. Eutheria, also known as placental mammals, are a diverse group of mammals that give birth to more…
Correct answer: Eutheria.- A. Arachnida.
- B. Insecta.
- C. Myriapoda.
- D. Crustacea.
Explanation: a) Arachnida: Arachnids are a class of arthropods that include spiders, scorpions, ticks, and mites.
Correct answer: Arachnida.- A. Sepia.
- B. Teredo.
- C. Limax.
- D. Ostrea.
Explanation: Teredo is one of the genera wood-boring bivalve shipworms.
Correct answer: Teredo.- A. Pseudocoelomata
- B. Coelomata
- C. Acoelomata
- D. None of these
Explanation: Acoelomate is an animal that does not possess a body cavity
Correct answer: Acoelomata- A. Echinodermata
- B. Annelida
- C. Arthropoda
- D. Nematoda
Explanation: Option[A] The larvae of echinodermata [called dipleurula larva] are characterized by bilateral symmetry.
Correct answer: Echinodermata2927. Taenia is an endoparasite of human, pig and cattle which belongs to thethatpigs,humans phylum.
- A. Cnidaria
- B. Aschelminthes
- C. Annelida
- D. Platyhelminthes
Explanation: Intracellular parasites are endoparasites that live within the cell of the host.
Correct answer: Platyhelminthes- A. Planaria
- B. Ascaris
- C. Fasciola
- D. Tapeworm
Explanation: Proglottid can be defined as each segment in the strobils of a tapeworm containing a complete sexually mature reproductive system.
Correct answer: Tapeworm2929. _ is a common parasite of the intestine of human and pigshumans that belongs to the phylum nematode.
- A. Taenia solanum
- B. Schistosoma
- C. Ascaris lumbriocoides
- D. Fasciola hepatica
Explanation: Ascaris belongs to phylum Nematode. It is a parasitic worm. It causes ascariasis disease.
Correct answer: Ascaris lumbriocoides- A. Taenia solium
- B. Wuchereria bancrofti
- C. Ascaris lumbricoides
- D. Schistosoma
Explanation: Ascaris Lumbricoides is a large, parasitic roundworm known for surviving in the human intestine.
Correct answer: Ascaris lumbricoides- A. Amphibians
- B. Reptiles
- C. Birds
- D. Mammals
Explanation: A four-chambered heart with a right systemic arch is present in BirdsBirds have a unique circulatory system in which they possess a…
Correct answer: Birds- A. Humans
- B. Basidiomycota
- C. Deuteromycota
- D. Basidiospores
Explanation: Deuteromycota commonly reproduce via asexual reproduction throught the conidia; a sexual phase has not yet been observed.
Correct answer: Deuteromycota- A. Saprophytic.
- B. Symbiotic.
- C. Parasitic.
- D. Both B and C.
Explanation: Saprophytes are living organisms that live and feed on the remains of other organisms i.e on dead and decaying organisms.
Correct answer: Saprophytic.- A. Penicillium notatum
- B. Aspergillus fumigatus
- C. Aspergillus flavus
- D. Penicillium chrysogenum
Explanation: Penicillium notatum is the fungus from which Alexander Fleming first isolated penicillin in 1928, marking a groundbreaking advancement in…
Correct answer: Penicillium notatum- A. Candida
- B. Aspergillus
- C. Tortula
- D. Penicillium
Explanation: Option [A] Most thrush is caused by Candida albicans. This fungus exists naturally in the vagina,mouth, bowel and elsewhere.So right…
Correct answer: Candida- A. Candida albicans
- B. Saccharomyces cerevisiae
- C. Aspergillus fumigatus
- D. Aspergillus flavus
Explanation: Candida albicans, an opportunistic pathogenic yeast is a common member of the human mouth and vaginal flora.
Correct answer: Candida albicans- A. Bacteria
- B. Fungi
- C. Cyanobacteria
- D. Algae
Explanation: Chitin is a substance made from fibrous polysaccharides. They are famously known for being used to construct the cell walls of eukaryotic…
Correct answer: Fungi- A. Fibers.
- B. Vessels.
- C. Sclereides.
- D. None of these.
Explanation: The first three options are features of schlerenchyma.
Correct answer: None of these.- A. Psilopsida.
- B. Lycopsida.
- C. Tracheophyta.
- D. Sphenopsida.
Explanation: a) Psilopsida: Psilopsida, also known as whisk ferns, have rootless sporophytes.
Correct answer: Psilopsida.- A. Angiospermae.
- B. Gemnospermae.
- C. Paraphsys.
- D. Filicineae.
Explanation: d) Filicineae: Filicineae, also known as ferns, are a class of seedless vascular plants.
Correct answer: Filicineae.