8
Question
All information from our environment is detected by the specialized .................. cells.
All information from our environment is detected by the specialized .................. cells.
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Solution
The correct option is A Nerve
The two main types of cells of the nervous system are neurons/nerve cells and neuroglia. The main function of neurons is to receive sensory inputs from the internal and external environment by sensory nerves and transmit it to CNS (brain and spinal cord) for processing and finally transmit the nerve impulses from CNS to effectors (muscles and glands).Neuroglia/glial cells support and nourish the nerve cells, destroy pathogen and modulate the impulse transmission. The nephron is the anatomical and functional unit of kidney and thus is the part of the excretory system. Companion cells are the component of phloem in flowering plants and regulate loading and unloading of sugars into sieve tube elements for translocation. Therefore, the correct answer is option A.
The two main types of cells of the nervous system are neurons/nerve cells and neuroglia. The main function of neurons is to receive sensory inputs from the internal and external environment by sensory nerves and transmit it to CNS (brain and spinal cord) for processing and finally transmit the nerve impulses from CNS to effectors (muscles and glands).
Neuroglia/glial cells support and nourish the nerve cells, destroy pathogen and modulate the impulse transmission.
The nephron is the anatomical and functional unit of kidney and thus is the part of the excretory system.
Companion cells are the component of phloem in flowering plants and regulate loading and unloading of sugars into sieve tube elements for translocation.
Therefore, the correct answer is option A.
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