Question 1. Excessive exposure to ultraviolet radiation causes a. inflammation of liver b. cancer of skin c. damage to the…
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Chapter 9 In-text Questions-9.1 Page 143 Q1. If a trait A exists in 10% of a population of an asexually…
In text Questions Set 1 Page 128 Q1. What is the importance of DNA copying in reproduction? Solution: DNA –…
In text Questions Page: 260 Q1. What are trophic levels? Give an example of a food chain and state the…
In text Questions – 1 Page: 271 1. What changes can you make in your habits to become more environment-friendly?…
In text questions set 1 Page Number 95 1. Why is diffusion insufficient to meet the oxygen requirements of multicellular…
In-text questions set 1 Page Number 119 1. What is the difference between a reflex action and walking? Ans. Difference between…
Question 1: Name two fossil fuels. ANSWER: Petroleum and coal are two fossil fuels. Page No 258: Question 2: Name…
Question 1: What is the functional unit of the environment comprising of the living and non-living components called? ANSWER: The…
Question 1: Which of the processes, sexual reproduction or asexual reproduction, bring about maximum variations in the offsprings? ANSWER: Maximum…