Free Concept of Evolution MCQs with Answers

192 Concept of Evolution MCQs from Biology, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.

Evolution is the heritable change in populations over generations, driven by mutation, recombination, natural selection, genetic drift and reproductive isolation. Questions examine variation, adaptation, survival and reproduction, speciation, fossil and anatomical evidence, and the difference between individual acclimatization and evolutionary change in a population.

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192 questions · page 4 of 10

  • A. Latin
  • B. English
  • C. Greek
  • D. French

Explanation: The term biology comes from Greek roots: bios means life and logos means study or knowledge.

Correct answer: Greek
  • A. Anatomy
  • B. Biology
  • C. Geology
  • D. Zoology

Explanation: Biology is the scientific study of living organisms, including their structure, functions, reproduction and relationships.

Correct answer: Biology
  • A. Cnidaria
  • B. Porifera
  • C. Mollusca
  • D. Nematodes

Explanation: The spongocoel is the central cavity of a sponge and is found in members of phylum Porifera.

Correct answer: Porifera
  • A. Earthworm
  • B. Euglena
  • C. Squids
  • D. Star fish

Explanation: The giant squid is regarded as the largest invertebrate, with some species reaching very great lengths and masses.

Correct answer: Squids
  • A. ecotype
  • B. Species
  • C. Genus
  • D. Order

Explanation: Species, genus and order are formal ranks in the taxonomic hierarchy. An ecotype is a genetically adapted population within a species, not…

Correct answer: ecotype
  • A. Ecology
  • B. Cosmology
  • C. Exobiology
  • D. None of These

Explanation: Exobiology, also called astrobiology, studies life beyond Earth and the effects of extraterrestrial environments on terrestrial organisms…

Correct answer: Exobiology
  • A. Mammals
  • B. Protochordates
  • C. Reptiles
  • D. Birds

Explanation: Protochordates do not possess true jaws, whereas mammals, reptiles and birds are jawed vertebrates.

Correct answer: Protochordates
  • A. Hetropatric Specie
  • B. Allopatric Specie
  • C. Homopatric Specie
  • D. Astroparic specie

Explanation: Allopatric populations or species occupy different geographical regions and are separated by a physical barrier or distance.

Correct answer: Allopatric Specie
  • A. Mutation
  • B. Natural selection
  • C. Gene flow
  • D. Both A & C

Explanation: Mutation creates new alleles, while gene flow can introduce alleles from another population.

Correct answer: Both A & C
  • A. 1752
  • B. 1753
  • C. 1754
  • D. 1755

Explanation: Linnaeus published Species Plantarum in 1753, establishing a major standard for binomial naming of plants.

Correct answer: 1753
  • A. Molluscs
  • B. Annelids
  • C. Sponges
  • D. Cniderians

Explanation: Annelids have a true coelom divided by transverse septa into repeated compartments, matching their segmented body plan.

Correct answer: Annelids
  • A. Botany
  • B. Ecology
  • C. Social biology
  • D. Pharmacology

Explanation: Ecology studies interactions among organisms and between organisms and their physical environment.

Correct answer: Ecology
  • A. Cooksonia
  • B. Selaginella
  • C. Adiantum
  • D. Dryopteris

Explanation: Cooksonia is generally regarded as one of the earliest known vascular land plants, appearing in the Silurian Period.

Correct answer: Cooksonia
  • A. Autecology
  • B. Niche
  • C. Ecosystem
  • D. Biome

Explanation: A niche is the functional role or occupation of a species, including how it uses resources and interacts with its environment.

Correct answer: Niche
  • A. Worms
  • B. Insects
  • C. Jelly fish
  • D. None of these

Explanation: Insects are the largest group of invertebrates and are distinguished by jointed appendages, a segmented body and usually three body…

Correct answer: Insects
  • A. tracheophytes
  • B. bryophytes
  • C. pteridophytes
  • D. all of these

Explanation: Tracheophytes are vascular plants because they possess xylem and phloem for transporting water, minerals, and organic nutrients.

Correct answer: tracheophytes
  • A. stem tuber
  • B. rhizoids
  • C. sporangium
  • D. none of these

Explanation: Marchantia is a thalloid liverwort whose underside bears rhizoids that anchor the thallus and help absorb water.

Correct answer: rhizoids
  • A. Psilopsida
  • B. Lycopsida
  • C. Sphenopsida
  • D. Prteropsida

Explanation: Psilopsida, represented by Psilotum, has a simple leafless sporophyte with naked dichotomously branched stems.

Correct answer: Psilopsida
  • A. Psilopsida
  • B. Lycopsida
  • C. Sphenopsida
  • D. Prteropsida

Explanation: In Lycopsida, sporangia occur singly on the upper surface of sporophylls, and the sporophylls may be arranged into compact cones called…

Correct answer: Lycopsida
  • A. Psilopsida
  • B. Lycopsida
  • C. Sphenopsida
  • D. Prteropsida

Explanation: Sphenopsida has reduced, scale-like leaves arranged in whorls around the stem, as seen in Equisetum.

Correct answer: Sphenopsida