Biology MCQs

1496 MCQs  — Everyday Science MCQs  (Page 119 of 150)

Attempt Biology Quiz
Which of the following acts as thermoregulator?
A. Cerebrum
B. Cerebellum
C. Thalamus
D. Hypothalamus
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Receptors for hearing come under heading of___________?
A. Chemical
B. Mechanical
C. Photo
D. Nociceptors
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Microscopic gaps between the neuron endings are called__________?
A. Transmitters
B. Synapses
C. Pores
D. Nodes
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Under resting membrane potentials:
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.
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Reflex actions below the neck are under control of____________?
A. Brain
B. Spinal cord
C. Hypothalamus
D. None of these.
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Which of the following is largest part of brain?
A. Cerebrum
B. Cerebellum
C. Medulla oblongata
D. Thalamus
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Any change in the environment of an organism is called___________?
A. Stimulus
B. Variation
C. Response
D. Reaction
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Hydra has___________?
A. Brain
B. Nerves
C. Neuron-cells
D. All of these
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Co-ordination in man is brought about by___________?
A. Nervous system
B. Endocrine system
C. Both of these
D. None of these.
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Which of the following transmits nerve impulse from receptors to central nervous system?
A. Sensory neuron
B. Motor neuron
C. Associative neuron
D. None of these.
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Word of the Day
13 Jul
Debunk
expose the falseness or hollowness of (an idea or belief).
بے نقاب کرنا، پول کھولنا

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