Speciation MCQs with Answers

adminApril 6, 2024Last Updated: October 15, 2024

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Welcome to the Speciation MCQs with Answers. In this post, we have shared Speciation Online Test for different competitive exams. Find practice Speciation Practice Questions with answers in Biology Tests exams here. Each question offers a chance to enhance your knowledge regarding Speciation.

Speciation is the process of creating new species out of existing species. It occurs due to genetic, geographic, or reproductive forms of population division within a species which eventually drifts apart with the passage of time due to Darwinian pressures. The pressure may be one of the four kinds: mutations, natural selection, genetic drift, or environmental.

Allopatric speciation: This happens when the population gets divided by some physical barrier, like a mountain or a river. It leads to genetic divergence eventually making different species.

Sympatric speciation No geographical isolation, usually owing to behavioral, ecological, or genetic conditions that can prevent interbreeding in the same area.

Peripatric and parapatric speciation: When adjacent populations are not vicariously separated but because of different environmental conditions or niches lead to speciation. The easiest process of evolution is speciation. It explains why there is such biodiversity on Earth. It gives the explanation of how species adapt to new environments, and why the different species are so frequently well-suited to definite habitats. The theory of natural selection by Charles Darwin helps to explain, through speciation, the evolution of species adaptation.

Speciation Online Quiz

By presenting 3 options to choose from, Speciation Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of Speciation Questions and Answers and click over the correct answer.

Test Name: Speciation MCQ Quiz Practice
Type: Quiz Test
Total Questions: 40
Total Marks: 40
Time: 40 minutes

Note: Answer of the questions will change randomly each time you start the test. Practice each quiz test at least 3 times if you want to secure High Marks. Once you are finished, click the View Results button. If any answer looks wrong to you in Quizzes. simply click on question and comment below that question. so that we can update the answer in the quiz section.

Speciation

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1 / 40

The study of how species are formed and evolve is called _____.

Evolution

Speciation

Taxonomy

2 / 40

Adaptive radiation is a form of _____.

Sympatric speciation

Punctuated equilibrium

Allopatric speciation

3 / 40

Speciation is the process by which new _____.

Species

Traits

Genes

4 / 40

The presence of a physical barrier that separates populations is an example of _____.

Allopatric speciation

Polyploidy

Sympatric speciation

5 / 40

Postzygotic barriers prevent _____.

Hybrid survival

Mating between species

Fertilization

6 / 40

The process of two species evolving in response to each other, often resulting in coevolution, is called _____.

Adaptive radiation

Coevolution

Reproductive isolation

7 / 40

Reinforcement occurs when _____.

Hybrid fitness decreases and reproductive barriers strengthen

Hybrid fitness increases and reproductive barriers weaken

Reproductive barriers weaken over time

8 / 40

The process by which new species form in response to changes in ecological niches is known as _____.

Sympatric speciation

Allopatric speciation

Ecological speciation

9 / 40

The process of speciation where new species arise due to geographic isolation is called _____.

Adaptive radiation

Allopatric speciation

Sympatric speciation

10 / 40

The presence of a physical barrier that separates populations is an example of _____.

Polyploidy

Sympatric speciation

Allopatric speciation

11 / 40

The process of speciation that occurs rapidly in response to a drastic change in the environment is called _____.

Adaptive radiation

Gradualism

Punctuated equilibrium

12 / 40

Speciation that occurs without physical separation is known as _____.

Sympatric speciation

Allopatric speciation

Polyploidy

13 / 40

Hybrid zones are regions where _____.

Two different species' ranges overlap and interbreeding occurs

No species exist

Only one species exists

14 / 40

The process by which populations become reproductively isolated and evolve into distinct species while still living in the same area is called _____.

Allopatric speciation

Sympatric speciation

Hybridization

15 / 40

Which of the following statements about hybrid zones is true?

They always lead to speciation

They are regions where no hybrids occur

They can be stable or dynamic

16 / 40

Allopatric speciation occurs when _____.

Hybridization occurs

Populations inhabit the same area

Populations are geographically separated

17 / 40

Gametic isolation is a form of _____.

Sympatric speciation

Postzygotic barrier

Prezygotic barrier

18 / 40

Reproductive isolation between two species is typically _____.

Independent of geographic factors

Stronger in allopatry

Stronger in sympatry

19 / 40

The founder effect can contribute to speciation by _____.

Reducing genetic variation

Increasing gene flow

Promoting hybridization

20 / 40

The process of speciation where new species arise due to ecological differences within the same geographic area is known as _____.

Ecological speciation

Adaptive radiation

Allopatric speciation

21 / 40

Which of the following is an example of allopatric speciation?

Geographic isolation in birds

Polyploidy in plants

Behavioral isolation in insects

22 / 40

The process of speciation that occurs rapidly in response to a drastic change in the environment is called _____.

Punctuated equilibrium

Adaptive radiation

Gradualism

23 / 40

Which of the following is an example of postzygotic isolation?

Behavioral isolation

Habitat isolation

Hybrid sterility

24 / 40

The biological species concept defines a species as a group of individuals that _____.

Can interbreed and produce fertile offspring

Live in the same habitat

Share similar physical traits

25 / 40

The fusion of two species back into one is called _____.

Hybridization

Speciation reversal

Fusion

26 / 40

Geographic isolation can lead to _____.

Polyploidy

Allopatric speciation

Sympatric speciation

27 / 40

Reproductive isolation prevents _____.

Natural selection

Mutation

Gene flow

28 / 40

The process by which closely related species evolve different traits in response to different selective pressures is called _____.

Divergent evolution

Convergent evolution

Coevolution

29 / 40

The process of speciation where new species arise due to hybridization between two parent species is called _____.

Allopatric speciation

Hybrid speciation

Sympatric speciation

30 / 40

Mechanical isolation is a type of _____.

Prezygotic barrier

Postzygotic barrier

Allopatric speciation

31 / 40

The Dobzhansky-Muller model explains speciation through the accumulation of _____.

Reproductive barriers

Homologous chromosomes

Incompatible alleles

32 / 40

Which of the following is NOT a mechanism of reproductive isolation?

Behavioral isolation

Gametic isolation

Mutation

33 / 40

Which of the following is an example of sympatric speciation?

Founder effect in mammals

Geographic isolation in birds

Polyploidy in plants

34 / 40

Polyploidy can lead to speciation through _____.

Gradual allopatric speciation

Instantaneous sympatric speciation

Behavioral isolation

35 / 40

Behavioral isolation occurs when _____.

Physical barriers separate populations

Two species interbreed

Different mating behaviors prevent reproduction

36 / 40

The "Snowball Earth" hypothesis suggests that _____.

Speciation is driven by geographic isolation

Speciation rates are constant over time

Global cooling events led to rapid speciation

37 / 40

In allopatric speciation, reproductive isolation occurs _____.

Without geographic separation

Before geographic separation

After geographic separation

38 / 40

Which of the following is a prezygotic barrier to reproduction?

Behavioral isolation

Habitat isolation

Hybrid infertility

39 / 40

Sympatric speciation occurs when _____.

Populations are geographically separated

Populations inhabit the same area

Gene flow is restricted

40 / 40

Prezygotic barriers prevent _____.

Development of hybrids

Fertilization

Formation of gametes

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adminApril 6, 2024Last Updated: October 15, 2024

0 43 2 minutes read