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. Gynoecium
- B. Calyx
- C. Androecium
- D. Corolla
Explanation: The androecium is the male reproductive part of a flower, consisting of one or more stamens.
Correct answer: Androecium- A. Psilopsida
- B. Pteropsida
- C. Angiosperms
- D. Bryophyta
Explanation: The distinguishing characters "Vascular System absent; gametophyte dominant, sporophyte attached to gametophyte; homosporous," are…
Correct answer: Bryophyta- A. Pollens disperse by air
- B. Haploid microspores
- C. Ovaries
- D. Pollen tubes
Explanation: Angiosperms have ovaries, which are structures that enclose and protect the seeds.
Correct answer: Ovaries- A. Rosaceae
- B. Solanaceae
- C. Minosaceae
- D. Fabaceae
Explanation: The Fabaceae family, commonly known as the legume or pea family, includes a diverse group of plants, many of which have economic…
Correct answer: Fabaceae- A. Mimosaceae
- B. Poaceae
- C. Rosaceae
- D. Fabaceae
Explanation: Poaceae, commonly known as the grass family, is one of the largest and most economically important families of flowering plants.
Correct answer: Poaceae- A. Hydrocotyl
- B. Carrot
- C. Iberis
- D. Grapes
Explanation: The term "umbel of umbels" refers to an inflorescence arrangement where multiple smaller umbels are arranged in an overall larger…
Correct answer: Carrot- A. Poaceae
- B. Asteraceae
- C. Rosaceae
- D. Fabaceae
Explanation: Poaceae, commonly known as the grass family, is one of the largest and most economically important families of flowering plants.
Correct answer: Poaceae- A. Mitosis
- B. Meiosis
- C. Amitosis
- D. Binary Fission
Explanation: In the life cycle of mosses such as Funaria, the process of cell division involved in gamete formation is known as mitosis.
Correct answer: Mitosis- A. Fever tree
- B. Deadly nightshade
- C. English Yew
- D. Daffodils
Explanation: Taxus baccata is the botanical name for the European yew, a species of coniferous tree. The European yew belongs to the family Taxaceae.
Correct answer: English Yew- A. Figs
- B. Cabbages
- C. Oranges
- D. Pears
Explanation: Figs (Ficus carica) are generally known for their sweet and succulent fruits, and they are indeed associated with the summer season in…
Correct answer: Figs- A. Aerial
- B. Partly aerial and partly underground
- C. Underground
- D. Photosynthetic
Explanation: In the plant group Lycopsida, which includes clubmosses, spike mosses, and quillworts, the gametophyte generation is predominantly…
Correct answer: Underground- A. Selaginella
- B. Polytrichum
- C. Ectocarpus
- D. Liverworts
Explanation: The correct answer is Ectocarpus. In Ectocarpus, both the gametophyte and sporophyte stages are independent of each other, which is…
Correct answer: Ectocarpus- A. Horsetail
- B. Club mosses
- C. Psilopsida
- D. Pteropsida
Explanation: Tmesipteris is a genus of plants belonging to the class Psilopsida, which is commonly referred to as whisk ferns.
Correct answer: Psilopsida- A. Pteropsida
- B. Lycopsida
- C. Psilopsida
- D. Sphenopsida
Explanation: Horsetails are classified under the class Sphenopsida, also known as Equisetopsida.
Correct answer: Sphenopsida- A. Pneumatophore
- B. Phizophores
- C. Rhizoids
- D. Adventitious roots
Explanation: In ferns, the roots that emerge from the rhizome are known as 'adventitious roots.' These roots develop from structures other than the…
Correct answer: Adventitious roots- A. Psilopsida
- B. Lycopsida
- C. Sphenopsida
- D. Pterosida
Explanation: Selaginella belongs to the class of lycopsida as it has scale-leaves bearing a ligule and has spores of 2 types.
Correct answer: Lycopsida- A. Porifera
- B. Coelenterata/Cnidaria
- C. Arthropoda
- D. Platyhelminthes
Explanation: Coral reefs are the characteristic feature of the phylum Cnidaria. Cnidaria is a phylum of aquatic invertebrates that includes corals, sea…
Correct answer: Coelenterata/Cnidaria- A. Collenchyma
- B. Sclerenchyma
- C. Sclereids
- D. Fibres
- E. Parenchyma
Explanation: Sclerieds, also known as stone cells, are specialized sclerenchyma cells found in some plant tissues.
Correct answer: Sclereids- A. Solanaceae
- B. Rosaceae
- C. Fabcene
- D. Poaceae
Explanation: The correct answer is D Poaceae. Spikelet inflorescence is a characteristic feature of the family Poaceae, also known as the grass family…
Correct answer: Poaceae- A. Cotton
- B. Mulberry
- C. Sunflower
- D. Sundew
- E. Banana
Explanation: A scorpoid cyme is characterized by a coiled or helical arrangement of flower clusters that resemble the shape of a scorpion's tail.
Correct answer: Cotton