Evolutionary Biology

Natural Selection MCQs with Answers

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

The concept of natural selection is a basic mechanism of evolution that keeps species adapted to their environment for survival over generations. Defined by Charles Darwin, natural selection helps explain how advantageous traits become more common in the population due to their benefit to survival and reproduction.

The core principles of the theory of natural selection are variation, inheritance, and differential survival. Any population possesses variations in the traits of its members, which may be of size or color or behavior. Such traits are passed down from generation to generation. Natural selection then serves on these variations by choosing individuals with traits beneficial in terms of survival and the propagation of such a form in a particular environment.

Differential survival and reproduction result in an increase in the favorable trait within the population over generations. Organisms that possess traits that would improve their ability to find food or avoid predators are more fitted to pass those traits to their offspring. Over time, advantageous traits become prevalent and therefore tend to change the population.

The concept of natural selection is of huge importance in evolutionary biology and ecology, as it explains diversity in forms of life and adaptation to a variety of environments. Modern developments, such as population genetics and molecular evolution, have further developed the concept of natural selection by throwing light on the genetic basis of adaptive traits and evolutionary processes.

Natural Selection Online Quiz

By presenting 3 options to choose from, Natural Selection 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 Natural Selection Questions and Answers and click over the correct answer.

  • Test Name: Natural Selection 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.

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Natural Selection MCQs

Natural Selection

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1 / 40

Evolutionary fitness is measured by an individual's _____.

2 / 40

The process by which traits that confer a survival advantage become more common in a population over time is called _____.

3 / 40

In natural selection, the ultimate source of variation is _____.

4 / 40

Which of the following is an example of directional selection in action?

5 / 40

The process by which traits become more common in a population over time due to natural selection is called _____.

6 / 40

Evolutionary changes that occur rapidly over a short period of time are known as _____.

7 / 40

Intrasexual selection involves _____.

8 / 40

The study of the distribution of species and their evolutionary relationships is called _____.

9 / 40

The principle of natural selection was introduced in the book titled _____.

10 / 40

Disruptive selection favors individuals _____.

11 / 40

The individual credited with formulating the theory of natural selection is _____.

12 / 40

In the context of natural selection, fitness refers to _____.

13 / 40

Intersexual selection involves _____.

14 / 40

The bottleneck effect occurs when _____.

15 / 40

The founder effect occurs when _____.

16 / 40

The bottleneck effect and founder effect are examples of _____.

17 / 40

The process by which similar traits evolve independently in different species due to similar environmental pressures is called _____.

18 / 40

Evolutionary changes that occur due to random fluctuations in allele frequencies are known as _____.

19 / 40

Which of the following is an example of artificial selection?

20 / 40

The concept of "survival of the fittest" refers to _____.

21 / 40

The process by which individuals with certain traits produce more offspring than individuals with other traits is called _____.

22 / 40

Natural selection acts on _____.

23 / 40

Genetic variation in a population arises from _____.

24 / 40

Sexual selection is a type of natural selection that operates based on _____.

25 / 40

Evolution by natural selection requires _____.

26 / 40

Directional selection favors individuals _____.

27 / 40

Which of the following is NOT a condition for natural selection to occur?

28 / 40

Which of the following is NOT a requirement for natural selection to occur?

29 / 40

The phenomenon where females choose mates based on specific traits, leading to the evolution of these traits, is called _____.

30 / 40

In natural selection, the "selective pressure" refers to _____.

31 / 40

The process by which unrelated species evolve similar traits due to similar environmental pressures is called _____.

32 / 40

Stabilizing selection favors individuals _____.

33 / 40

Natural selection is the process by which _____.

34 / 40

The genetic composition of a population changes over time due to _____.

35 / 40

The process by which a new species evolves from a pre-existing species is called _____.

36 / 40

The term "adaptation" refers to _____.

37 / 40

The ability of a population to undergo natural selection depends on _____.

38 / 40

The term "fitness" in the context of natural selection refers to an organism's _____.

39 / 40

Which of the following is NOT a mechanism of evolution?

40 / 40

Which of the following factors can contribute to genetic variation within a population?

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