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FAQs on PPT: Chapter 6 - Tissues, Class 9, Science

1. What are tissues?
Ans. Tissues are groups of similar cells that work together to perform a specific function in an organism. They are the building blocks of organs and can be classified into four types: epithelial, connective, muscular, and nervous tissues.
2. What is the function of epithelial tissue?
Ans. Epithelial tissue covers the surfaces of the body, both inside and outside, and forms the lining of organs and cavities. It provides protection, secretion, absorption, and excretion in various organs.
3. How is connective tissue different from other tissues?
Ans. Connective tissue connects and supports different structures in the body. Unlike other tissues, it has a matrix that separates and supports the cells. It also provides strength, elasticity, and protection to organs and tissues.
4. What is the role of muscular tissue?
Ans. Muscular tissue is responsible for movement in the body. It helps in locomotion, maintains posture, and generates heat. There are three types of muscular tissue: skeletal, smooth, and cardiac.
5. What is the function of nervous tissue?
Ans. Nervous tissue is responsible for transmitting and receiving signals in the body. It forms the nervous system, which controls and coordinates the activities of different organs and systems. It consists of neurons and supporting cells called neuroglia.
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