CBSE Class Notes Online – Classnotes123
CBSE Class Notes, Worksheets, Question Answers, Diagrams , Definitions , Diffrence between , Maths Concepts, Science Facts Online – Classnotes123
Variation Variation is defined as the small changes or differences among the members of a species which happens over the period of time . During the process of reproduction there …
What is Variation in Biology Class 10 Read MoreVariations are the basis of evolution. It helps the organism adapt to harsh or new environmental conditions or changes for survival. For example: climate change can force a species to …
Why is variation Beneficial to the species but not necessarily for the individual ? Class 10 Read MoreDNA Copying is important in the process of reproduction for the following reasons DNA is the genetic material which is a source of information for making proteins. DNA contains information …
What is the Importance of DNA copying in Reproduction – Class 10 Read MoreAccomodation The process of adjusting the eye’s focal length is called accommodation The image must fall precisely on the retina to produce clear vision—that is, the image distance must equal …
What is Power of Accommodation of Eye Class 10 Read MoreThe main parts of the human eye are : Cornea Iris Pupil Ciliary muscles Eye lens Retina Optic nerve Cornea : It is the transparent bulged out spherical membrane in …
Structure of Human Eye Class 10 Read More
Our planet is home to animals which live in different types of surroundings like forests, rivers, ponds, mountains, gardens, deserts, and even in our homes. Animals form a diverse group …
Animals Everywhere Class 5 CBSE Read MoreTick the correct answers. 1) Which of the following is a physical change? a) Melting of butter b) rusting of iron c) burning of paper d) changing of wheat to …
States of Matter / Solid, Liquid and Gases class 5 worksheet Read MoreMultiple choice questions (MCQs) Which of these plants reproduce through its stem? a) carrot b) lotus plant c) mango tree Correct Answer: (A) Carrot The cotyledons do not contain a) …
Class 5 Chapter 1 Plant Life Worksheet With Answers Read More
Short answer questions. Define fertilization in the case of plants. Answer: Fertilization in plants is defined as the process of fusion of the male gamete produced in the pollen tube …
Plant Life Class 5 Chapter 1 Questions and Answers Read More
Plants are living things which cannot move from place to place and need air, water,soil and sunlight to live. Plants are of different shapes and sizes. Different types of plants …
Plant life Class 5 Science Chapter 1 Read More