Biology 9th Class Urdu Medium Online Test With Answers

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Biology 9th Class Urdu Medium Online Test

Sr. # Questions Answers Choice
1 At which level of organization gas exchage occurs between body and environment. Organ system level in the respiratory system Oranelle level in mitochondria Cellular level in alveolar cells Tissue level in epithelial tissues
2 In the wall of stomach which tissue also contains blood vessels and nerves. Inner Connective Epithelial Muscle Phloem
3 The epithelial tissue in the stomach wall is responsibel for producing. Mucus Pepsinogen Hydrochloric acid All of these
4 What is homeostasis. A type of hormone Digestive process The body's way of maintaiing a stable internal environment A respiratory function
5 Organims have the ability to change and modify their internal conditions according to the environment through. Osmoregulation Excretion Thermoregulation All of the above
6 Which of the following statements best describes homeostasis. Keeping the body in a fixed and unaltered state Dynamic equilibrium Maintaining a near constant intrnal environment Altering the exernal environment to accommodate the body's needs.
7 This statemtn about homeostasis is inccorect. There is one system regulating the homeostatic activities Because fo this , the fluctuations of the internal environment are of extremely narrow range as compared to that of the external environment Homeostatic mechanismsm keep the internal environment constant depite wide changes in the external environment Homeostasis is necessary for the survival of cells
8 What is the main function of the nervous system. Digesting food Circulating blood Controllig and coordinating Plastids
9 What type of tissue lines the inner surface of the stomach. Nervous Epithelial Muscular Connective
10 Which organ system is responsible for circulating blood in the human body. Digestive Circulatory Nervous Respiratory
11 What tissue transports water in plants. Epidermal MesophyII Pholem Xylem
12 Which part of the platn is primarity involved in photosynthesis. Root Stem Flower Leaf
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