Daily Practice Problems undefined Evolution

Question 1:

Choose the correct options:

1. Darwin’s finches are good example of:

(a) Connecting links

(b) Missing links

(d) Convergent evolution

2. Which among the following gases was not present in the primitive earth’s atmosphere?

(a) Oxygen

(b) Methane

(d) Water vapours

3. Which among the following deals with the fossil evidences of evolution?

(a) Embryology

(b) Palaeontology

(d) Anatomy

4. The human fossils which were first to bury their dead and used hides to protect their body?

(a) Homo neanderthalensis

(b) Homo erectus

(c) Homo habilis

(d) Ramapithecus

Question 2:

Name the following:

1. The scientist who proposed the idea of the survival of fittest.

2. The single step large scale mutations that caused evolution.

3. Addition or loss of alleles from the population by chance alone.

4. The term given to the formation of new life from the pre-existing life.

5. A classical example of natural selection witnessed both pre- and post-industrialisation in England.

Question 3:

Fill in the blanks with appropriate words:

1. The phenomenon of industrial melanism demonstrate __________.

2. The most accepted theory of origin of life was proposed by __________ and __________.

3. The theory of use and disuse of organ was proposed by ___________.

4. The idea of mutations was brought forth by ___________.

5. Coccyx and muscles of external ear are examples of _____________ organs.

Question 4:

Classify the following as either homologous or analogous organs:

1. Thorns of Bougainvillea and tendrils of Cucurbita.

2. Heart of fishes and humans.

3. Forelimbs of whales and cheetah.

4. Eyes of octopus and mammals.

5. Flippers of Dolphins and penguins.

Question 5:

Draw a well labelled diagram of the apparatus set up by Stanley Miller and Harold Urey to demonstrate the experimentally the chemosynthetic origin of life.

Question 6:

Define the following terms:

1. Homologous organ

2. Natural selection

3. Founder’s effect

4. Convergent evolution

5. Adaptive radiation

Question 7:

Match the columns A and B.

Column A	Column B
1. Nictitating membrane	a. Homologous organs
2. Forelimbs of bats and humans	b. Darwin’s finches
3. Galapagos islands	c. Chemosynthetic origin of life
4. Charles Darwin	d. Vestigial organs
5. Oparin and Haldane	e. Theory of natural selection

Question 8:

State whether the following statements are true or false.

1. The Big Bang theory attempts to explain the origin of universe.

2. Analogous organs arise due to convergent evolution.

3. Mutations are random and directional.

4. Dryopithecus was more man-like and Ramapithecus was more ape-like.

5. de Vries’ saltation referred to single step large mutations.

Question 9:

Name the scientists who experimentally rejected the theory of abiogenesis.

Question 10:

What does the theory of biogenesis state?

Question 11:

Name the scientists who proposed the chemosynthetic origin of life.

Question 12:

Name the gases taken by Miller and Urey in their experiment to support biochemical origin of life. Why were these gases taken?

Question 13:

In what ways the tendrils of vine and pea are analogous structures?

Question 14:

What does the presence of vermiform appendix in humans indicate?

Question 15:

In what ways were the finches observed by Darwin on the Galapagos Islands different? How did Darwin account for his observations?

Question 16:

Imagine you discovered a fossil of a bird with scales on the body and teeth in its beak. What would you conclude about its position in the animal kingdom?

Question 17:

A man can hold objects by his hands and an elephant by its trunk. Are these two organs analogous or homologous? Give a valid reason for your conclusion.

Question 18:

State the Hardy-Weinberg principle. What is its significance?

Question 19:

With the help of a flowchart, trace the line of human evolution.

Question 20:

Give any two embryological evidences of evolution.

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Application of Knowledge: Problem-solving allows you to apply the theoretical concepts of the topic Class 12 Biology Evolution you have learned to real-life situations. It helps you bridge the gap between abstract knowledge and practical scenarios, making the learning more relevant and meaningful.
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Retention and Recall: Actively engaging in problem-solving reinforces your memory and improves long-term retention. Applying the concepts learned in Evolution Class 12 Biology in practical scenarios helps you remember them better than passive reading or memorization.
Identifying Knowledge Gaps: When you attempt to solve problems, you may encounter areas where your understanding is lacking. These knowledge gaps become evident during problem-solving, and you can then focus on filling those gaps through further study and practice. You can refer Evolution Class 12 Biology Notes on LearnoHub.com
Boosting Confidence: Successfully solving problems after learning a theoretical concept boosts your confidence in your abilities to handle Evolution. This confidence motivates you to tackle more challenging tasks and improves your overall performance in the subject.
Preparation for Exams and Challenges: Many exams, especially in science, mathematics, and engineering, involve problem-solving tasks. Regular practice in problem-solving prepares you to face these exams with confidence and perform well. It is also advised to take tests on Evolution Class 12 Biology Online Tests at LearnoHub.com.
Enhancing Creativity: Problem-solving often requires thinking outside the box and exploring various approaches. This fosters creativity and innovation, enabling you to come up with novel solutions to different problems.
Life Skills Development: Problem-solving is a valuable life skill that extends beyond academics. It equips you with the ability to tackle various challenges you may encounter in personal and professional life.
Improving Decision Making: Problem-solving involves making decisions based on available information and logical reasoning. Practicing problem-solving enhances your decision-making skills, making you more effective in making informed choices.

In summary, problem-solving after learning a theoretical concept on CBSE Evolution Class 12 Biology is an essential part of the learning process. It enhances your understanding, critical thinking abilities, and retention of knowledge. Moreover, it equips you with valuable skills that are applicable in academic, personal, and professional contexts.

You must have heard of the phrase “Practice makes a man perfect”. Well, not just a man, practice indeed enhances perfection of every individual.

Practicing questions plays a pivotal role in achieving excellence in exams. Just as the adage goes, "Practice makes perfect," dedicating time to solve a diverse range of exam-related questions yields manifold benefits. Firstly, practicing questions allows students to familiarize themselves with the exam format and types of problems they might encounter. This familiarity instills confidence, reducing anxiety and improving performance on the actual exam day. Secondly, continuous practice sharpens problem-solving skills and enhances critical thinking, enabling students to approach complex problems with clarity and efficiency. Thirdly, it aids in identifying weak areas, allowing students to focus their efforts on improving specific topics. Moreover, practice aids in memory retention, as active engagement with the material reinforces learning. Regular practice also hones time management skills, ensuring that students can allocate appropriate time to each question during the exam. Overall, practicing questions not only boosts exam performance but also instills a deeper understanding of the subject matter, fostering a holistic and effective learning experience.

All About Daily Practice Problems on Class 12 Biology Evolution NCERT Chapter 6

Our Daily Practice Problems (DPPs) offer a diverse range of question types, including Multiple Choice Questions (MCQs) as well as short and long answer types. These questions are categorized into Easy, Moderate, and Difficult levels, allowing students to gradually progress and challenge themselves accordingly. Additionally, comprehensive solutions are provided for each question, available for download in PDF format - Download pdf solutions as well as Download pdf Questions. This approach fosters a holistic learning experience, catering to different learning styles, promoting self-assessment, and improving problem-solving skills. With our well-structured DPPs, students can excel in exams while gaining a deeper understanding of the subject matter. Hope you found the content on Class 12 Biology Evolution NCERT Chapter 6 useful.

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