Q. Pupil dilation, digestion and acceleration of heart beat is done by

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Q. White matter is made up of

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Q. Auxins

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Q. Receptors which detect stimuli of touch pressure are

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Q. Organic compounds of varying structural complexity poured directly into blood to act on target tissues are

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Q. Auxins promote growth at a very low concentration in

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Q. If somatotrophin hormone is produced in excess during early life, it leads to

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Q. In cross-section, gray matter in spinal cord is seen in shape of a

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Q. Functional types of neurons are

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Q. Nervous system of hydra is a network of neurons, present between the

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Q. If biorhythms are of about 365 days, these are called

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Q. Endocrine system consists of

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Q. Gibberellins sometimes substitute for

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Q. When a nerve impulse is generated in a neuron, its resting membrane potential is replaced by

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Q. Under-activity of parathormone causes a drop in blood calcium ions which in turn leads to

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Q. In a resting neuron, K+ ions are

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Q. Modification of behaviour through a diminution of response to repeated stimuli is

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Q. Another name for vasopressin is

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Q. Active or action potential of neuron lasts for

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Q. Flowering in pineapple is induced by

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