1. Tardigrade
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  4. Select the statements that are correct for reflex pathway. (1) Afferent neuron receives signal from a sensory organ. (2) Efferent neuron receives signal from a sensory organ. (3) Efferent neuron carries signals from CNS to the effector. (4) Efferent neuron transmits the impulse via a dorsal nerve root into the CNS.

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Q. Select the statements that are correct for reflex pathway.
$\left(1\right)$ Afferent neuron receives signal from a sensory organ.
$\left(2\right)$ Efferent neuron receives signal from a sensory organ.
$\left(3\right)$ Efferent neuron carries signals from CNS to the effector.
$\left(4\right)$ Efferent neuron transmits the impulse via a dorsal nerve root into the CNS.

NTA AbhyasNTA Abhyas 2022

Solution:

The reflex pathway comprises at least one afferent neuron and one efferent neuron appropriately arranged in a series. The afferent neuron receives signal from a sensory organ and transmits the impulse via a dorsal nerve root into the CNS. The efferent neuron then carries signals from CNS to the effector.