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 126 of 157
- A. The plant body is called thallus.
- B. Sporophyte Is thallus with 26 chromosomes.
- C. Gametophyte is thalius with 26 chromosomes.
- D. Reproduction is by sexual as well as asexual methods.
- E. It is found growing along the sea-coasts between high and low tides.
Explanation: "The explanation for this question will be added soon!".
Correct answer: Sporophyte Is thallus with 26 chromosomes.- A. Asexual plants are diploid sporophyte with 13 chromosomes.
- B. In Asexual reproduction in a single parent cell, 3 - 8 haploid zoospores are formed.
- C. Sexual reproduction results in forma gallate diploid zygote.
- D. Sexual plants are haploid gametophytes with 26 chromosomes.
- E. In sexual reproduction, fusion takes place only between two diploid sporophytes.
Explanation: "The explanation for this question will be added soon!".
Correct answer: Sexual reproduction results in forma gallate diploid zygote.- A. Lipids
- B. Proteins
- C. Carbohydrates
- D. Vitamins
- E. Starch & Lipids
Explanation: "The explanation for this question will be added soon!".
Correct answer: Proteins- A. Early blight of tomato
- B. Early blight of potato
- C. Late blight of tomato
- D. Late blight of potato
- E. Late flight of tomato
Explanation: Phytophthora infestans was cause of Irish potato famine of 19th century commonly known as late blight of potato.PTB- Pg 110
Correct answer: Late blight of potato- A. Mastigophora
- B. Rhizopoda
- C. Ciliophora
- D. Suctoria
- E. Sporozoa
Explanation: "The explanation for this question will be added soon!".
Correct answer: Mastigophora- A. Mastigophora
- B. Rhizopoda
- C. Ciliophora
- D. Suctoria
- E. Sporozoa
Explanation: "The explanation for this question will be added soon!".
Correct answer: Rhizopoda2507. Dysentery is caused by:
- A. Ecoli
- B. Salmonella
- C. Entamoeba Histotytica
- D. Bacteroides fragilis
- E. Listera monocytogenes
Explanation: "The explanation for this question will be added soon!".
Correct answer: Entamoeba Histotytica- A. Mastigophora
- B. Rhizopoda
- C. Ciliophora
- D. Suctoria
- E. Sporozoa
Explanation: "The explanation for this question will be added soon!".
Correct answer: Ciliophora- A. Mastigophora
- B. Sarcodina
- C. Suctoria
- D. Ciliophora
- E. Sporozoa
Explanation: "The explanation for this question will be added soon!".
Correct answer: Sarcodina2510. Mastigophora includes:
- A. Flagellates
- B. Amoebas
- C. Ciliates
- D. Sporozoans
- E. Suctorians
Explanation: "The explanation for this question will be added soon!".
Correct answer: Flagellates- A. Flagellata & Sarcodina
- B. Flagellata & Suctoria
- C. Ciliata & Sporozoa
- D. Ciliata & Suctoria
- E. Suctoria & Sporozoa
Explanation: "The explanation for this question will be added soon!".
Correct answer: Ciliata & Suctoria- A. Flagellata
- B. Sarcodina
- C. Ciliata
- D. Suctoria
- E. Sporozoa
Explanation: "The explanation for this question will be added soon!".
Correct answer: Suctoria2513. Sporozoans have:
- A. Both locomotory organelles and contractile vacuoles
- B. Locomotory organelles but not contractile vacuoles
- C. Contractile vacuoles but not locomotory organelle
- D. Neither locomotory organelle nor contractile vacuoles
- E. All are incorrect
Explanation: "The explanation for this question will be added soon!".
Correct answer: Neither locomotory organelle nor contractile vacuoles- A. Flagellata
- B. Sarcodina
- C. Sporozoa
- D. Ciliata
- E. Suctoria
Explanation: "The explanation for this question will be added soon!".
Correct answer: Sporozoa- A. Flagellata
- B. Sarcodina
- C. Sporozoa
- D. Ciliate
- E. Suctoria
Explanation: "The explanation for this question will be added soon!".
Correct answer: Suctoria- A. Life cycle completed in two hosts: man & female Anopheles mosquito
- B. Man serves as primary host
- C. Mosquito serves as a secondary host
- D. The asexual cycle completes in mosquitoes
- E. The sexual cycle completes in mosquito
Explanation: "The explanation for this question will be added soon!".
Correct answer: The asexual cycle completes in mosquitoes2517. Asexual cycle of:
- A. Is completed in mosquito
- B. In pre-erythrocytic stage, the sporozoites takes about 2 hours to invade the hepatic cells
- C. In the liver, the sporozoites grow for a number of days and become a schizont
- D. Schizonts in the liver divide to form merozoites
- E. Exoerythrocytics are present in post erythrocytic phase
Explanation: "The explanation for this question will be added soon!".
Correct answer: Schizonts in the liver divide to form merozoites- A. Erythrocytic phase ⟶ Pre-crythrocytic phase ⟶ Garnogony ⟶ Post-erythrocytic phase
- B. Erythrocytic phase ⟶ Gamogony ⟶ Pre-erythrocytic phase ⟶ Post-erythrocytic phase
- C. Pre-ecrythrocytic phase ⟶ Post-erythrocytic phase ⟶ Gamogony ⟶ Erythrocytic phase
- D. Post-erythrocytic phase ⟶ Pre-erythocytic phase ⟶ Erythocytic phase ⟶ Gamegony
- E. Pre -erythrocytic phase ⟶ Erythrocytic phase ⟶ Post -erythrocytic phase ⟶ Gamegony
Explanation: "The explanation for this question will be added soon!".
Correct answer: Pre -erythrocytic phase ⟶ Erythrocytic phase ⟶ Post -erythrocytic phase ⟶ Gamegony- A. Erythrocytic phase
- B. Pre -erythrocytic phase
- C. Gametogony
- D. Gamogony
- E. Post-erythrocytic phase
Explanation: "The explanation for this question will be added soon!".
Correct answer: Gametogony- A. 6 - 8 sperm-like microgametes
- B. 6 - 8 sperm-like macrogamete's
- C. 8 12 sperm-like microgametes
- D. 5 - 7 sperm-like macrogamete's
- E. 12 - 15 sperm-like microgamete
Explanation: "The explanation for this question will be added soon!".
Correct answer: 6 - 8 sperm-like microgametes