Biology
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Punjab Biology Online 10th Class Test Lesson 1 Gaseous Exchange
Gas exchange is a biological process through which different gases are transferred in opposite directions across a specialized respiratory surface. Gaseous…
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Punjab Biology Online 10th Class Test Lesson 2 Homeostasis
The ability or tendency of an organism or cell to maintain internal equilibrium by adjusting its physiological processes. Homeostasis is…
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Punjab Biology Online 10th Class Test Lesson 3 Coordination and Control
In animals control and coordination is done by the nervous system. and endocrine system. The nervous system consists of the…
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Punjab Biology Online 10th Class Test Lesson 4 Support and Movement
The ability of an living organism to produce response against any stimula are called Irritability it is also called Sensitivity.…
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Punjab Biology Online 10th Class Test Lesson 5 Reproduction
The reproductive system or genital system is a system of human organs within an organism which work together for the…
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