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. 102°F
- B. 104°F
- C. 106°F
- D. 107°F
- E. 106°C
Explanation: Malaria can cause high fevers as part of its symptomatology, especially in severe cases.
Correct answer: 106°F- A. Headache
- B. Muscular pains
- C. Constipation
- D. Chills
- E. Flu-like symptoms
Explanation: Constipation is not a typical symptom of malaria. Malaria commonly presents with symptoms that affect the body's temperature regulation…
Correct answer: Constipation- A. The plant body is called thallus
- B. Sporophyte is thallus with 26 chromosomes
- C. Gametophyte is thallus 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 correct answer is Option D: 'Reproduction is by sexual as well as asexual methods.' This statement is typically true for many algae…
Correct answer: Reproduction is by sexual as well as asexual methods- A. Option A
- B. Option B
- C. Option C
- D. Option D
- E. Option E
Explanation: Explanation for this question will be added soon.
Correct answer: Option D- A. Species
- B. Domain
- C. Kingdom
- D. Diversity
Explanation: Species is defined as a group of organisms capable of interbreeding and creating fertile offspring.
Correct answer: Species- A. Similar genera in one family
- B. Similar species in one genus
- C. Similar familes in one order
- D. All of above
Explanation: Linnaean classification indeed involved grouping organisms hierarchically based on similarities, encompassing similar species in one…
Correct answer: All of above- A. Physalia
- B. Euplactella
- C. Sponges
- D. Jellyfish
- E. Taenia
Explanation: Explanation for this question will be added soon.
Correct answer: Physalia- A. Pseudocoelom
- B. Coelom
- C. Acoelom
- D. Enteron
Explanation: [A] Roundworms have pseudocoelom and is covered with tough cuticles between the endoderm and mesoderm.[B] Coelom: principal body cavity…
Correct answer: Pseudocoelom- A. Jellyfish
- B. Sea anemone
- C. Tapeworm
- D. Corals
- E. Sponge
Explanation: Explanation for this question will be added soon.
Correct answer: Tapeworm- A. Protozoans
- B. Eumetazoa
- C. Protoctist ancestors
- D. Nematodes
Explanation: Aschelminthes are commonly called roundworms as are nematodes.
Correct answer: Nematodes- A. Allen
- B. Thorpe
- C. Schjeldeup ebbe
- D. Carpenter
Explanation: The social organization of howling monkeys has been studied by several researchers.
Correct answer: Carpenter- A. Disinfestations
- B. Antisepsis
- C. Infections
- D. Infestations
Explanation: FACT Diseases in living organisms that are caused by parasites are called infestations.
Correct answer: Infestations- A. Reptiles
- B. Mammals
- C. Both reptiles and mammals
- D. Birds and mammals
Explanation: Option A: Reptiles generally do not have three bones in the ear. Instead, reptiles typically have a single bone in their middle ear called…
Correct answer: Birds and mammals- A. Few centimeter wide to more than one meter tall.
- B. Few decimeter wide to more than one meter tall.
- C. One meter wide to more than millimeter tall.
- D. Few millimeter wide to more than one meter tall.
Explanation: Most Porifera are only a few centimeters in size, but some urn-shaped or shapeless ones are less than a centimeter (0.4 inches); others…
Correct answer: Few millimeter wide to more than one meter tall.- A. Annelida
- B. Mollusca
- C. Plathyelminthes
- D. Coelenterata
Explanation: The' arthropod nervous system' consists of a dorsal brain and a ventral, ganglionated longitudinal nerve cord (primitively paired) from…
Correct answer: Annelida- A. Porifera
- B. Parazoa
- C. Coelomates
- D. Protozoa
Explanation: Parazoa refers to the class of organisms in the kingdom Animalia which lacks tissue grade of organization.
Correct answer: Parazoa- A. Reptiles
- B. Mammals
- C. Both reptiles and mammals
- D. Birds and mammals
Explanation: Modern mammals are unique among vertebrates for possessing three tiny bones in the middle ear.
Correct answer: Mammals- A. Nuerons are differentiated into sensory, motor and associative neurons.
- B. Nerves are present.
- C. No specialized sensory organs are present.
- D. All of the above.
Explanation: 1. Planaria is a flatworm and belongs to the phylum Platyhelminthes. 2.
Correct answer: No specialized sensory organs are present.- A. They may be coelomate pseudocoelomate or acoelomate
- B. They are included in grade bilateria
- C. All of them have a digestive system
- D. All of them have blood vascular system
Explanation: Correct option is D. Option D is not a feature of triploblastic animals.
Correct answer: All of them have blood vascular system- A. Fungus
- B. Smut
- C. Bacterium
- D. Yeast
Explanation: Corn smut is a plant disease caused by the pathogenic fungus Ustilago maydis.
Correct answer: Smut