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

Which of the following is an example of sympatric speciation?

Polyploidy in plants

Founder effect in mammals

Geographic isolation in birds

2 / 40

The founder effect can contribute to speciation by _____.

Increasing gene flow

Promoting hybridization

Reducing genetic variation

3 / 40

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

Sympatric speciation

Hybridization

Allopatric speciation

4 / 40

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

Punctuated equilibrium

Gradualism

Adaptive radiation

5 / 40

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

Sympatric speciation

Ecological speciation

Allopatric speciation

6 / 40

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

Evolution

Speciation

Taxonomy

7 / 40

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

Sympatric speciation

Hybrid speciation

Allopatric speciation

8 / 40

Reproductive isolation between two species is typically _____.

Stronger in sympatry

Stronger in allopatry

Independent of geographic factors

9 / 40

Mechanical isolation is a type of _____.

Allopatric speciation

Prezygotic barrier

Postzygotic barrier

10 / 40

Polyploidy can lead to speciation through _____.

Instantaneous sympatric speciation

Gradual allopatric speciation

Behavioral isolation

11 / 40

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

Incompatible alleles

Reproductive barriers

Homologous chromosomes

12 / 40

In allopatric speciation, reproductive isolation occurs _____.

Without geographic separation

Before geographic separation

After geographic separation

13 / 40

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

Polyploidy

Sympatric speciation

Allopatric speciation

14 / 40

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

Sympatric speciation

Adaptive radiation

Allopatric speciation

15 / 40

Which of the following statements about hybrid zones is true?

They are regions where no hybrids occur

They can be stable or dynamic

They always lead to speciation

16 / 40

Speciation that occurs without physical separation is known as _____.

Polyploidy

Allopatric speciation

Sympatric speciation

17 / 40

Postzygotic barriers prevent _____.

Hybrid survival

Mating between species

Fertilization

18 / 40

Geographic isolation can lead to _____.

Allopatric speciation

Sympatric speciation

Polyploidy

19 / 40

Sympatric speciation occurs when _____.

Populations inhabit the same area

Populations are geographically separated

Gene flow is restricted

20 / 40

Gametic isolation is a form of _____.

Postzygotic barrier

Prezygotic barrier

Sympatric speciation

21 / 40

Reinforcement occurs when _____.

Hybrid fitness increases and reproductive barriers weaken

Reproductive barriers weaken over time

Hybrid fitness decreases and reproductive barriers strengthen

22 / 40

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

Coevolution

Convergent evolution

Divergent evolution

23 / 40

Which of the following is a prezygotic barrier to reproduction?

Habitat isolation

Hybrid infertility

Behavioral isolation

24 / 40

Behavioral isolation occurs when _____.

Two species interbreed

Physical barriers separate populations

Different mating behaviors prevent reproduction

25 / 40

Reproductive isolation prevents _____.

Gene flow

Mutation

Natural selection

26 / 40

The "Snowball Earth" hypothesis suggests that _____.

Global cooling events led to rapid speciation

Speciation is driven by geographic isolation

Speciation rates are constant over time

27 / 40

Which of the following is an example of postzygotic isolation?

Behavioral isolation

Hybrid sterility

Habitat isolation

28 / 40

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

Gradualism

Punctuated equilibrium

Adaptive radiation

29 / 40

Hybrid zones are regions where _____.

Two different species' ranges overlap and interbreeding occurs

No species exist

Only one species exists

30 / 40

Adaptive radiation is a form of _____.

Sympatric speciation

Allopatric speciation

Punctuated equilibrium

31 / 40

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

Coevolution

Adaptive radiation

Reproductive isolation

32 / 40

Allopatric speciation occurs when _____.

Hybridization occurs

Populations inhabit the same area

Populations are geographically separated

33 / 40

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

Live in the same habitat

Can interbreed and produce fertile offspring

Share similar physical traits

34 / 40

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

Hybridization

Fusion

Speciation reversal

35 / 40

Prezygotic barriers prevent _____.

Formation of gametes

Development of hybrids

Fertilization

36 / 40

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

Allopatric speciation

Adaptive radiation

Ecological speciation

37 / 40

Speciation is the process by which new _____.

Traits

Species

Genes

38 / 40

Which of the following is an example of allopatric speciation?

Behavioral isolation in insects

Geographic isolation in birds

Polyploidy in plants

39 / 40

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

Mutation

Gametic isolation

Behavioral isolation

40 / 40

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

Allopatric speciation

Sympatric speciation

Polyploidy

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adminApril 6, 2024Last Updated: October 15, 2024

0 47 2 minutes read