Which is the closest pet of human being ? from Biology Evolution

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 Multiple Choice QuestionsMultiple Choice Questions

141.

Darwin finches are related to which of the following evidences ?

  • Fossils

  • Embryology

  • Anatomy

  • Geographical distribution


142.

Allopatric speciation is due to :

  • geographical separation of population

  • hybridization between closely related species

  • migration of the members of a species from one to other population

  • both (b) and (c)


143.

Evolutionary convergence is characterized by:

  • development of characteristics by random mating

  • replacement of common characteristic in different related groups

  • development of dissimilar characteristics in closely related groups

  • development of a common set of characteristics in groups of different ancestry


144.

What is a key stone species ?

  • A rare species that has minimal impact on biomass and on other species in community

  • A dominant species that constitutes a large proportion of biomass, which affects many other species

  • A common species that has plenty of biomass, yet has a fairly low impact on the community's organization

  • A species which makes up only a small proportion of the total biomass of a community, yet has a huge impact on the community's organization and survival


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145.

In which of the following population, genetic drift operates?

  • Island

  • Smaller

  • Larger

  • Continental


146.

Lichens are important in the studies on atmospheric pollution because they

  • can grow in polluted atmosphere

  • can readily multiply in polluted atmosphere

  • efficiently purify the atmosphere

  • are very sensitive to pollutants like sulphur dioxide


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147.

Which is the closest pet of human being ?

  • Cat

  • Cow

  • Dog

  • Buffalo


C.

Dog

Th closest pets of human being are dogs and cats. Dog is one of the earliest animals to be domesticated. Therefore, dogs are the closest pet of human beings.


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148.

The scientific name of Java man is

  • Homo habilis

  • Homo sapiens neandarthalensis

  • Homo erectus erects

  • Australopithecus bisei


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 Multiple Choice QuestionsShort Answer Type

149.

What are poikilothermic animals?


 Multiple Choice QuestionsMultiple Choice Questions

150.

Which is not applicable to the biological species concept

  • Hybridization

  • Natural population

  • Reproductive isolation

  • Gene pool


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