A C Sehgal Solutions for Exercise 3: EXERCISES
A C Sehgal Science Solutions for Exercise - A C Sehgal Solutions for Exercise 3: EXERCISES
Attempt the practice questions from Exercise 3: EXERCISES with hints and solutions to strengthen your understanding. Living Science 8 solutions are prepared by Experienced Embibe Experts.
Questions from A C Sehgal Solutions for Exercise 3: EXERCISES with Hints & Solutions
Microorganisms spread through
Which of these do not prevent the growth of bacteria?
Why viruses are considered to be on the borderline of living and non-living?
Discuss three important ways in which bacteria are useful to us and two ways in which they are harmful.
Discuss the different ways in which communicable diseases spread from person to person.
Why do you think curd sets faster in summer than in winter?
Why do you think curd turns sour faster in summer than in winter?
Evolution, i.e. changes in an organism to adjust to the environment, as suggested by Charles Darwin, is a very slow process that takes place over tens of thousands of generations, over millions of years. However, in bacteria, developing resistance to antibiotics, which is a type of evolution, takes place within our lifetime. Can you say why it occurs so quickly in bacteria?
