641 Hornwarts are included in sub-class of __________? Biology Medium Full question → A Anthoceropsida B Bryopsida C Hepaticopsida D Psilopsida
642 Today the land habitat is dominated by__________________? Biology Medium Full question → A Fungi B Gymnosperms C Angiosperms D Tracheophytes
643 Bryophtes are called amphiabians of plant world because: Biology Medium Full question → A Bryophytes like amphibian ancestors are one of the most primitive organisms in this world. B Bryophytes like amphibian live in damp shady places and close to water body. C Amphibians have close relation with bryophytes in their habitat. D All of these
644 Which of the following is present inside the vertebral column______________? Biology Medium Full question → A Brain B Spinal cord C Both of these D none of these.
645 Reflex actions below the neck are under control of____________? Biology Medium Full question → A Brain B Spinal cord C Hypothalamus D none of these.
646 Central nervous system of man consists of______________? Biology Medium Full question → A Brain B Spinal cord C Both of these D none of these
647 Which of the following ions are involved in the initiation of nerve impulse_______________? Biology Medium Full question → A Na+ B K+ C Fe D none of these
648 Under resting membrane potentials: Biology Medium Full question → A Outer surface of neuron is more positive B Inner surface of neuron is more positive C Both of these surfaces are equally positive D none of these.
649 What is the function of synapse________________? Biology Medium Full question → A To allow nerve impulse to move in backward direction B To decrease the speed of nerve impulse C To stop the nerve impulse D To provide cytoplasmic connection between neurons.
650 Microscopic gaps between the neuron endings are called__________? Biology Medium Full question → A Transmitters B Synapses C Pores D Nodes
651 Which of the following cytoplasmic extensions carry the message toward the cell body___________? Biology Medium Full question → A Dendrites B Axon C Both of these D none of these
652 Which of the following neuron has a single long dendron? Biology Medium Full question → A Sensory neuron B Motor neuron C Associative neuron D none of these.
653 In which of the following neurons length of dendrite is greater than axon_______________? Biology Medium Full question → A Sensory neuron B Motor neuron C Associative neuron D none of these.
654 Which of the following transmits nerve impulse from receptors to central nervous system? Biology Medium Full question → A Sensory neuron B Motor neuron C Associative neuron D none of these.
655 Which of the followings is missing from the nervous system of planaria_____________? Biology Medium Full question → A Ganglia B Longitudinal nerves C Lateral nerves D none of these
656 Co-ordination in man is brought about by___________? Biology Medium Full question → A Nervous system B Endocrine system C Both of these D none of these.
657 Hydra has___________? Biology Medium Full question → A Brain B Nerves C Neuron-cells D All of these
658 Which of the followings are effectors______________? Biology Medium Full question → A Muscles B Glands C Sensory organs D Both ‘a’ & ‘b’
659 Co-ordination results in_____________? Biology Medium Full question → A Regulation of body functions B Organization of body functions C Integration of body functions D All of these
660 Any change in the environment of an organism is called___________? Biology Medium Full question → A Stimulus B Variation C Response D Reaction