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Locomotion And Movement Class 11 notes
Locomotion and Movement class 11 notes Movement is one of the significant features of living beings. Animals and plants exhibit a wide range of movements. Streaming of protoplasm in the unicellular organisms like Amoeba is a simple form of movement. Movement of cilia, flagella and tentacles are shown by many organisms Human beings can move limbs, jaws, eyelids, tongue, etc.…
What is Neural system? It’s functions and types
What is the neural system? The neural system of all animals is composed of highly specialised cells called NEURONS which can detect, receive and transmit different kinds of stimuli. The neural organisation is very simple in lower invertebrates. For example, in Hydra it is composed of a network of neurons. The neural system is better organised in insects, where a…
What is muscle – it’s functions and type
MUSCLE Specialised tissue of mesodermal origin. About 40-50 percent of the body weight of a human adult Special properties à Excitability, contractility, extensibility and elasticity. Muscles have been classified using different criteria, namely location, appearance and nature of regulation of their activities. Based on their location, three types of muscles are identified : 1). Skeletal muscles 2). Visceral muscles 3).…
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What is Neural system? It’s functions and types
What is the neural system? The neural system of all animals is…
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Male reproductive system diagram class 12
The male reproductive system is located in the pelvis region It includes a pair of testes along with accessory ducts, glands and the external genitalia. The testes are situated outside…
