Apical dominance means :1. terminal bud growing nonstop2. terminal bud suppressing growth of lateral buds3. removal of the apex of the stem4. terminal and lateral branches grow equally
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If a terminal bud of a plant is removed :1. plants grow to normal height2. lateral branches grow3. plant increases in height4. roots do not develop
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Auxins in plants are synthesized at :1. nodes2. petiole3. meristems4. internodes
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The growing region of root is :1. tip2. below the tip3. in between nodes4. lower part of stem
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Cranial nerve that controls heart beat :1. Precaval2. Post caval3. aorta4. vagus
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In diseases like polio, the cells that get destroyed by virus are :1. monocytes2. erythrocytes3. motor neurons4. sensory neurons
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Nerves that carry impulses from sense organs to brain or spinal cord are :1. dendrites2. motor nerves3. efferent nerves4. afferent nerves
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Nerves that carry impulses from brain or spinal cord to effector organs are :1. sensory nerves2. afferent nerves3. dendrites4. efferent nerves
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The structures of neuron that are arranged in the form of a tree with branches :1. axon2. cyton3. dendrites4. myelin sheath