Concise Biology Class 9 ICSE Solutions for Chapter 12 - Movement And Locomotion

The skeletal system is a dynamic structure, which allows animals to move.The other functions are to support body weight and prevent collapse. Muscles attached to bones provide the movements of animals. This movement is used for food, escape from predators, etc. The movement has many patterns like forward movement, backward movement, turning right or left, etc., These movements are brought about by different muscles at different joints. For now, we will only see the movements of animals by understanding some common terms used during the explanation of motion.

Transverse Movement: This movement is by using the body as a whole, where the body is described as the "longitudinal" dimension. The shoulder, elbow, and wrist are connected by joints. The elbow joint consists of two bones called the humerus and ulna. The wrist joint consists of four bones called radius, ulna, scaphoid, carpal bones.

Longitudinal Movement: This movement is by using the limbs as a whole where the limbs are described as "the longitudinal" dimension. The shoulder is connected with the elbow joint by two joints called the glenoid fossa and coronoid fossa.

You can solve ICSE Class 9 Biology chapter 12 Selina Solutions Manually and the solutions given below use the technology of manual calculation, but certain portions of these solutions can be worked out by hand without too much difficulty. The following is a method that will allow you to work out all, or at least most, of these solutions by hand: Read through all the terms and concepts discussed in the chapter. Vedantu provides a pdf to refer to solve the questions of this book easily.

Yes, Vedantu PDFs are provided with solutions for all questions of this chapter by subject experts/authors of this book. These pdf files consist of syllabus-wise solutions given by Vedantu for ICSE Class 9 Biology chapters Book released by Selina Publishers, India.

Read the chapter once and then solve the questions. Refer to the Solutions given by Vedantu, if you have difficulty in solving a particular question. Vedantu will give you solutions for all questions in one go. When you are solving ICSE Class 9 Biology chapter 12 Selina Solutions Manually, make sure that you can solve any question correctly; if not, refer back to the pdf file that has the solution for that particular question. You may need to refer to the Solutions given by Vedantu continuously when you feel like solving a particular question. If there is any doubt about your answers, feel free to look up again at the Solutions given by Vedantu.