Subject Experts Solutions for Chapter: Reproduction in Animals, Exercise 3: TOUGH NUT
Subject Experts Science Solutions for Exercise - Subject Experts Solutions for Chapter: Reproduction in Animals, Exercise 3: TOUGH NUT
Attempt the practice questions on Chapter 9: Reproduction in Animals, Exercise 3: TOUGH NUT with hints and solutions to strengthen your understanding. Study Mate Science Class 8 solutions are prepared by Experienced Embibe Experts.
Questions from Subject Experts Solutions for Chapter: Reproduction in Animals, Exercise 3: TOUGH NUT with Hints & Solutions
Is it possible for women with blocked oviducts to bear a child? Support your answer.
A child changes into an adult as he/she grows. Is this process called metamorphosis? Support your answer.
The life cycle of a butterfly is really intriguing. Butterflies develop from birth to death in four stages—in the first stage the female butterfly lays eggs; in the second stage the egg hatches and a caterpillar is born with only one job—to eat, eat, and eat; in the third Stage the fully-grown caterpillar stops eating, protects itself from outside by making a protective covering, and is known as pupa; in the final stage, the cocoon of the pupa breaks and a butterfly emerges. This is also called the reproductive stage when the butterfly has only one duty—to mate and lay eggs.
(i) What is the process described above known as?
(ii) Name a few species which undergo the same process.
(iii) List three values which we can learn from this process.
After reading today's newspaper, Rahul meets his friend Satish and informs him about a few interesting articles he has read in the newspaper.
Rahul: Good morning Satish! Have you read today's newspaper? It has three interesting articles on cloning.
Satish: No, I have not read today's newspaper till now. What are the three news articles?
Rahul: Firstly, the European Union has banned the sale of cloned livestock. Secondly, the Russians have established a facility for cloning mammoth—an animal which went extinct thousands of years ago. Thirdly, the Chinese company BGI is running a facility in Shenzhen which is five times the size of the largest facility in Europe. It is already cloning five hundred pigs a year.
Satish: Wow! It looks like there will be big challenges with cloning in the near future.
Rahul: Yes, I agree. Who knows in future we might be able to clone human beings or dinosaurs or maybe both?
(i) Which type of cloning is Rahul and Satish discussing about?
(ii) Give reasons why the success of the Russian facility will be a good idea.
(iii) Should we read newspapers daily? Why?
