Education & Jobs News on newsongoogle.com By Bilal Articles: Navigating the Future of Education and Careers
Biology – Class 12th
Welcome to the “Biology – Class 12th” category on NewsOnGoogle.com, your dedicated source for educational content tailored to students in Class 12th who are delving into the fascinating world of life sciences and biology.
Download 2nd Year Biology All Chapter Notes for Class 12 on NewsOnGoogle.com Author: Bilal Articles Introduction:2nd Year Biology Education is a fundamental aspect of personal and societal growth. In today’s digital age, access to educational resources has become easier than ever, thanks to the internet. One such platform that offers a wealth of educational materials…
2nd Year Biology Chapter 27 Man & His Environment Question And Answer Short And Simple Question And Answer Q 1. What is Ozone layer? Ans. The Ozone layer is a region in the Earth’s atmosphere, extending from 10-50 km above the Earth, which filters out ultraviolet rays from the sun. Q 2. What do you…
2nd year Chapter 26 Some Major Ecosystem Question and Answer Short And Simple Question and Answer Q.1 How is ecological balance disturbed in a eutrophic lake? Ans. Eutrophic lakes experience excessive nutrient input, often from human activities like agricultural runoff or sewage discharge. This leads to an overgrowth of algae, disrupting the ecological balance as most…
2nd Year Biology Chapter 24 Ecosystem Question and Answer Short and Simple Question And Answer Q 1. What are the biochemical cycles? Ans. Biochemical cycles are natural processes where chemicals circulate between the environment and living organisms. Q 2. Define grazing? Ans. Grazing is when animals like rabbits, cows, and horses feed on grasses in…
2nd Year Biology Chapter 24 Evolution Question And Answer Short and Simple Question And Answer Q 1. What are the sources of hydrogen for reducing CO2 in the first photosynthetic organism? Ans. The first photosynthetic organism likely used hydrogen sulfide as a source of hydrogen to reduce carbon dioxide into sugars. Q 2. What is…
2nd Year Biology Chapter 23 Biotechnology Question and Answer Short and Simple Question And Answer Q 1. What is the use of genetically engineered bacteria? Ans. Genetically engineered bacteria are used to clean up environmental pollutants, increase soil fertility, and control insect pests. Q 2. What are restriction enzymes? Ans. Restriction enzymes are natural bacterial…
2nd Year Biology Chapter 22 Variation & Genetics Question And Answer Short And Simple Question Answer Q 1. Difference between phenotype and genotype? Ans. Phenotype is how a trait looks, genotype is the genetic makeup. Q 2. Define population? Ans. A group of interbreeding organisms of the same species. Q 3. What is the product…
2nd Year Biology Chapter 21- Cell Cycle Question and Answer Short and Simple Question And Answer Q 1. What is the cell cycle? Ans. The cell cycle is a sequence of changes in a cell, including growth, DNA replication, and cell division. Q 2. How long is the human cell cycle? Ans. The average human…
2nd Year Biology Chapter 20 Chromosomes & DNA Question an Answer Short and Simple Question And Answer Q 1. Who first observed chromosomes? Ans. The German embryologist Walther Fleming first observed them in 1882 while examining the rapidly dividing cells of salamander larvae. Q 2. What is euchromatin? Ans. Euchromatin is the portion of the…
2nd Year Biology Chapter 19 Growth Development Question And Answer Short And Simple Question And Answer Q1. What are growing points? Ans. Growing points are specific regions in higher plants where growth occurs, such as the shoot apex and root tip. Q2. What is secondary growth? Ans. Secondary growth is the increase in thickness of…