... is the ability of organism to detect and respond to a stimulus.

• nervous system

• stimuli

• sensitivity

• response

These are the examples how organism to a stimulus, EXCEPT ...

• plant moves toward the sun due to photosynthesis

• mice runs when the snake hunt it

• fish dead due to oil spill in the ocean

• cockroaches move away from the light

The nervous system in humans regulates bodily functions and activities, and ... the body's responses to stimuli.

• sensitivity

• coordinates

• nervous system

• stimulus

Which of this activity that are not control consciously?

• heart beat

• breathing

• peristaltic movement

• scratching itchy skin

This is how impulses are transmitted by nerves.

• effectors --> nerves --> nerves --> receptors --> CNS

• receptors-->nerves --> CNS --> nerves --> effectors

• CNS --> nerves --> effectors --> receptors --> nerves

• nerves --> receptors --> CNS --> nerves --> effectors

The sense organs receive stimuli, called as ...

• receptors

• nerve impulses

• CNS

• PNS

The PNS consists of ... and ...

• brain and spinal cord

• spinal nerves and spinal cord

• cranial nerves and spinal nerves

• brain and cranial nerves

The nervous system is made up of nervous tissue and consists of nerve cells called ...

• neurons

• receptor

• effector

• stimulus

Relation between a sensory neurone, a relay neurone and a motor neuron correctly shows on ...

• muscle fibres - sensory neurone - relay neurone - motor neurone - sense organ

• sense organ - relay neurone - sensory neurone - motor neurone - muscle fibres

• muscle fibres - sense organ - relay neurone - sensory neurone - motor neurone

• sense organ - sensory neurone - relay neurone - motor neurone - muscle fibres

A tiny space at the junction between two neurons called as ...

• synaptic knob

• synaptic gap

• synapse

• sensory neurone