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Class 10 Mcq

Class 10 Science के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

ScienceWhy is the growth of a pollen tube towards an ovule considered directional?Class 10World of LivingControl and CoordinationLevel 17Medium ScienceFolding of touch-me-not leaves and coiling of a tendril are both related to touch. What is the main difference between them?Class 10World of LivingControl and CoordinationLevel 17Hard ScienceIn a horizontally placed plant, the root bends downward and the stem bends upward. Which conclusion is most correct?Class 10World of LivingControl and CoordinationLevel 17Medium ScienceIf water is available upward for a root while gravity acts downward, what understanding does this situation test?Class 10World of LivingControl and CoordinationLevel 17Hard ScienceHigh auxin concentration may inhibit growth in roots but promote growth in stems. What conclusion follows from this?Class 10Control and CoordinationPlant hormonesLevel 17Hard ScienceWhy does a plant bend towards light if auxin collects more on the shaded side of the stem?Class 10Control and CoordinationPlant hormonesLevel 17Medium ScienceA plant stem bends towards light in unilateral light. If unequal distribution of auxin is stopped, what will happen?Class 10Control and CoordinationPlant hormonesLevel 17Hard ScienceWhy is a reflex action faster than a voluntary action?Class 10Control and CoordinationReflex actionLevel 17Medium ScienceIn which example is the role of the cerebellum most clearly seen?Class 10Control and CoordinationNervous systemLevel 17Medium ScienceIf a person's breathing and heartbeat become abnormal but thinking ability remains normal which part is more suspicious?Class 10World of LivingControl and CoordinationLevel 17Hard ScienceWhich statement gives the best explanation of division of work in the brain?Class 10World of LivingControl and CoordinationLevel 17Medium ScienceWhy can reflex action be affected if a part of the spinal cord is injured?Class 10Control and CoordinationReflex actionLevel 17Hard ScienceA person can feel touch but cannot move the hand away after touch. Which conclusion is more scientific?Class 10World of LivingControl and CoordinationLevel 17Hard ScienceIn which situation can the role of a synapse be understood most clearly?Class 10World of LivingControl and CoordinationLevel 17Medium ScienceIf dendrites are removed from a neuron what will happen to its ability to receive messages?Class 10World of LivingControl and CoordinationLevel 17Medium ScienceIf the receptor in a reflex arc is working but the motor nerve is damaged what is the most likely result?Class 10World of LivingControl and CoordinationLevel 17Hard ScienceA person's pupil contracts in bright light and dilates in darkness. What is this the best example of?Class 10World of LivingControl and CoordinationLevel 17Medium ScienceWhat is the deepest scientific conclusion of the chapter Control and Coordination?Class 10World of LivingControl and CoordinationLevel 16Medium ScienceWhy can an error in any link of control and coordination change the whole response?Class 10World of LivingControl and CoordinationLevel 16Medium ScienceWhy can a reflex arc provide a survival advantage to an organism?Class 10Control and CoordinationReflex actionLevel 16Medium