Last Updated on September 12, 2024 by XAM CONTENT
Hello students, we are providing case study questions for class 8 science. Case study questions are the new question format that is introduced in CBSE board. The resources for case study questions are very less. So, to help students we have created chapterwise case study questions for class 8 science. In this article, you will find case study questions for cbse class 8 science chapter 6 Reproduction in Animals.
| Chapter | Reproduction in Animals |
| Type of Questions | Case Study Questions |
| Nature of Questions | Competency Based Questions |
| Board | CBSE |
| Class | 8 |
| Subject | Science |
| Useful for | Class 8 Studying Students |
| Answers provided | Yes |
| Difficulty level | Mentioned |
| Important Link | Class 8 Science Chapterwise Case Study |
Case Study Questions on Reproduction in Animals
Questions
Question 1:
Read the given passage below and answer the question:
All plants and animals go through life cycles. Just think about all the growing and changing human children do as they grow up. Children grow in height and get heavier until they reach adulthood. Children also change as their body matures.
Although we grow lots from the time we are born to adulthood, humans never transform. Unlike us, butterflies go through a metamorphosis, or transformation. A butterfly looks very different as it changes through all four stages of its life cycle. A butterfly transforms through the first stage egg to the last stage adult butterfly. Similarly, frogs go through the same transformation from egg to an adult.
Q. 1. Frog and butterfly comes under:
(a) Oviparous animals
(b) Viviparous animals
(c) Ovoviviparous
(d) None of the above
Difficulty Level: Easy
Ans. Option (a) is correct.
Explanation: Animals lay eggs which later develop into young ones. They are called oviparous animals. So, it is easier to observe the eggs of oviparous animals as they are outside the body.
Q. 2. What is another name of the pupa stage of butterfly?
(a) Caterpillar
(b) Adult
(c) Chrysalis
(d) None of the above.
Difficulty Level: Easy
Ans. Option(c) is correct.
Explanation: The transformation of a caterpillar (larva) to a butterfly takes place in the chrysalis (pupa). Butterflies go through a life cycle of 4 stages: egg, larva, pupa and an adult.
Q.3. Define the term metamorphosis.
Difficulty Level: Medium
Ans. The process of transformation of a larva to an adult through a series of drastic changes, for example, frog, silkworm, butterfly, etc., undergo metamorphosis.
Q. 4. What are the stages of life cycle of a frog?
(Medium)
Difficulty Level: Medium
Ans. Unlike mammals, frogs lay eggs. To increase the chances of survival, many eggs are laid in masses by the frog. Frog eggs can usually be found in calm or static waters.
Stages of life cycle of a frog are:
Egg → Tadpole → Froglet (young frog) → Adult frog.
Also check
- Light Class 8 Case Study Questions Science Chapter 13
- Some Natural Phenomena Class 8 Case Study Questions Science Chapter 12
- Chemical Effects of Electric Current Class 8 Case Study Questions Science Chapter 11
- Sound Class 8 Case Study Questions Science Chapter 10
- Friction Class 8 Case Study Questions Science Chapter 9
- Force and Pressure Class 8 Case Study Questions Science Chapter 8
- Reaching the Age of Adolescence Class 8 Case Study Questions Science Chapter 7
- Reproduction in Animals Class 8 Case Study Questions Science Chapter 6
- Conservation of Plants and Animals Class 8 Case Study Questions Science Chapter 5
- Combustion and Flame Class 8 Case Study Questions Science Chapter 4
- Coal and Petroleum Class 8 Case Study Questions Science Chapter 3
- Microorganisms: Friend and Foe Class 8 Case Study Questions Science Chapter 2
- Crop Production and Management Class 8 Case Study Questions Science Chapter 1
Topics from which case study questions may be asked
- Learning the modes of reproduction in animals.
- Learning process of asexual reproduction in microscopic organisms.
- Knowing various parts of the male and female reproductive system.
- Understanding the process of sexual reproduction.
- Understanding the process of fertilisation and development of embryo.
- Discussing the difference between viviparous and oviparous animals.
The process through which living beings produce new young ones of their own kind is called reproduction. Reproduction is necessary for the continuation of species, the transfer of variations from one generation to another and also for the addition of new species. This chapter deals with reproductive systems and various modes of reproduction in animals.
Helpful Links for CBSE Class 8 Science Preparation
Frequently Asked Questions (FAQs) on Reproduction in Animals Case Study Questions
Q1: What are case study questions for CBSE examinations?
A1: Case study questions in CBSE examinations typically involve scenarios or real-life examples, requiring students to apply their understanding of concepts to solve problems or analyze situations.
Q2: Why are case study questions important for understanding class 8 science chapters?
A2: Case study questions provide a practical context for students to apply theoretical knowledge to real-world situations, fostering deeper understanding and critical thinking skills.
Q3: How should students approach answering case study questions for CBSE?
A3: Students should carefully read the case study, identify the key issues or problems presented, analyze the information provided, apply relevant concepts and principles of reproduction in animals, and formulate well-supported solutions or responses.
Q4: Are there any resources available online for students to practice case study questions on class 8 science chapters for CBSE exams?
A4: Yes, several educational websites offer case study questions for CBSE students preparing for science examinations. We also offer a collection of case study questions for all classes and subject on our website. Visit our website to access these questions and enhance your learning experience.
Q5: How can students effectively prepare for case study questions on reproduction in animals for CBSE exams?
A5: Effective preparation strategies include regular revision of concepts, solving practice questions, analyzing case studies from previous exams, seeking clarification on doubts, and consulting with teachers or peers for guidance and support.
Q6: How can teachers incorporate case study questions on Reproduction in Animals class 8 science into classroom teaching?
A6: Teachers can integrate case studies into lesson plans, group discussions, or interactive activities to engage students in active learning, promote problem-solving skills, and facilitate a deeper understanding of reproduction in animals.
Q7: Which is the largest cell and smallest cell in the human body?
A7: Human reproductive system contains the largest cell (ovum) and smallest cell (sperm) in the human body.
Q8: Why the gametes have only half the number of chromosomes?
A8: Gametes are produced as a result of meiosis. In meiosis, a single cell divides into four haploid cells. The numbers of chromosomes are halved in meiosis and produces haploid gametes. Thus, the gametes have only half the number of chromosomes.
Q9: Define the term cloning.
A9: An artificial method invented by human beings to produce organ cell or part of living organisms without sexual or asexual reproduction. For example, sheep named Dolly was a clone.
Q10: Name the primary male and female sex hormones
A10: Testosterone is the primary male sex hormone produced by the testes and Estrogen or oestrogen is the primary female sex hormone secreted by ovaries.
