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. Trichonella
- B. Tripanosoma
- C. Trichonympha
- D. Trichina
Explanation: Although termites are insects that eat wood, they are not capable of digesting wood on their own.
Correct answer: Trichonympha- A. Red algae
- B. Brown algae
- C. Green algae
- D. Diatoms
Explanation: The brown algae comprise the class Phaeophyceae, golden-brown algae that range from small filamentous forms to large, complex seaweeds.
Correct answer: Brown algae- A. Obligate parasites
- B. Facultative parasite
- C. Malarial parasites
- D. Pathogenic parasites
Explanation: Apicomplexan, also called sporozoan, are protozoan of the (typically) spore-producing phylum Apicomplexa.
Correct answer: Malarial parasites3124. Kelps are:
- A. Diatoms
- B. Red-algae
- C. Green-algae
- D. Brown-algae
Explanation: Kelps are brown algae, known for their large size and complex structure, often forming dense underwater forests in cold oceanic regions.
Correct answer: Brown-algae- A. A flagellum
- B. A cillium
- C. An extended pseudopod
- D. A pellicle
Explanation: Pellicle is a thick cuticle and it is not a locomotor organ so option D is incorrect. Whereas pseudopods are cytoplasmic extensions.
Correct answer: A cillium- A. Euglenoids
- B. Rhodophyta
- C. Diatoms
- D. Dinoflagellates
Explanation: Poisonous red tides are caused by algae so the correct option is D i.e Dinoflagellates
Correct answer: Dinoflagellates- A. A fungus
- B. An algae
- C. A protozoan
- D. A prokaryote
Explanation: Students should learn that Acetabularia Mediterranea is a green algae
Correct answer: An algae- A. Red-algae
- B. Blue-algae
- C. Green-algae
- D. Brown-algae
Explanation: Students should learn that most conspicuous sea-weeds are brown algae
Correct answer: Brown-algae- A. Pelicle
- B. Cell wall
- C. Sheath
- D. Cuticle
Explanation: The pellicle is the outer flexible covering found in ciliates, which are a type of microorganism.
Correct answer: Pelicle- A. Plants
- B. Bacteria
- C. Animal
- D. Viruses
Explanation: Protozoa actually have characteristics that are more closely similar to animals rather than plants.
Correct answer: Animal